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Finding the Fourth Proportional to 144,903.90, 216,918.45 and 144,903.90

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Solution

The fourth proportional to 144,903.90, 216,918.45 and 144,903.90 is: 216,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,903.90 : 216,918.45 = 144,903.90 : x
  2. Step 2: Convert to fraction form
    144,903.90/216,918.45 = 144,903.90/x
  3. Step 3: Cross multiply
    144,903.90x = 216,918.45 × 144,903.90
  4. Step 4: Simplify right side
    144,903.90x = 31,432,329,386.96
  5. Step 5: Solve for x
    x = 31,432,329,386.96/144,903.90
  6. Step 6: Final answer
    x = 216,918.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.