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Finding the Fourth Proportional to 103,017,998.40, 144,437,534.40 and 103,017,998.40

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Solution

The fourth proportional to 103,017,998.40, 144,437,534.40 and 103,017,998.40 is: 144,437,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,017,998.40 : 144,437,534.40 = 103,017,998.40 : x
  2. Step 2: Convert to fraction form
    103,017,998.40/144,437,534.40 = 103,017,998.40/x
  3. Step 3: Cross multiply
    103,017,998.40x = 144,437,534.40 × 103,017,998.40
  4. Step 4: Simplify right side
    103,017,998.40x = 14,879,665,687,719,146
  5. Step 5: Solve for x
    x = 14,879,665,687,719,146/103,017,998.40
  6. Step 6: Final answer
    x = 144,437,534.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.