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Finding the Fourth Proportional to 202,044.90, 303,038.55 and 68,931.30

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Solution

The fourth proportional to 202,044.90, 303,038.55 and 68,931.30 is: 103,387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,044.90 : 303,038.55 = 68,931.30 : x
  2. Step 2: Convert to fraction form
    202,044.90/303,038.55 = 68,931.30/x
  3. Step 3: Cross multiply
    202,044.90x = 303,038.55 × 68,931.30
  4. Step 4: Simplify right side
    202,044.90x = 20,888,841,201.62
  5. Step 5: Solve for x
    x = 20,888,841,201.62/202,044.90
  6. Step 6: Final answer
    x = 103,387.12

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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.