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Finding the Fourth Proportional to 93,938.65, 129,640.31 and 51,498.97

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Solution

The fourth proportional to 93,938.65, 129,640.31 and 51,498.97 is: 71,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,938.65 : 129,640.31 = 51,498.97 : x
  2. Step 2: Convert to fraction form
    93,938.65/129,640.31 = 51,498.97/x
  3. Step 3: Cross multiply
    93,938.65x = 129,640.31 × 51,498.97
  4. Step 4: Simplify right side
    93,938.65x = 6,676,342,177.99
  5. Step 5: Solve for x
    x = 6,676,342,177.99/93,938.65
  6. Step 6: Final answer
    x = 71,071.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.