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Finding the Fourth Proportional to 103,414.55, 144,485.12 and 103,414.55

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Solution

The fourth proportional to 103,414.55, 144,485.12 and 103,414.55 is: 144,485.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,414.55 : 144,485.12 = 103,414.55 : x
  2. Step 2: Convert to fraction form
    103,414.55/144,485.12 = 103,414.55/x
  3. Step 3: Cross multiply
    103,414.55x = 144,485.12 × 103,414.55
  4. Step 4: Simplify right side
    103,414.55x = 14,941,863,666.50
  5. Step 5: Solve for x
    x = 14,941,863,666.50/103,414.55
  6. Step 6: Final answer
    x = 144,485.12

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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.