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Finding the Fourth Proportional to 261,767.73, 392,334.13 and 119,417.95

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Solution

The fourth proportional to 261,767.73, 392,334.13 and 119,417.95 is: 178,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,767.73 : 392,334.13 = 119,417.95 : x
  2. Step 2: Convert to fraction form
    261,767.73/392,334.13 = 119,417.95/x
  3. Step 3: Cross multiply
    261,767.73x = 392,334.13 × 119,417.95
  4. Step 4: Simplify right side
    261,767.73x = 46,851,735,952.44
  5. Step 5: Solve for x
    x = 46,851,735,952.44/261,767.73
  6. Step 6: Final answer
    x = 178,982.10

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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.