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Finding the Fourth Proportional to 121,359.90, 181,966.95 and 62,310.90

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Solution

The fourth proportional to 121,359.90, 181,966.95 and 62,310.90 is: 93,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,359.90 : 181,966.95 = 62,310.90 : x
  2. Step 2: Convert to fraction form
    121,359.90/181,966.95 = 62,310.90/x
  3. Step 3: Cross multiply
    121,359.90x = 181,966.95 × 62,310.90
  4. Step 4: Simplify right side
    121,359.90x = 11,338,524,424.76
  5. Step 5: Solve for x
    x = 11,338,524,424.76/121,359.90
  6. Step 6: Final answer
    x = 93,428.92

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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.