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Finding the Fourth Proportional to 144,785.76, 216,882.98 and 74,517.45

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Solution

The fourth proportional to 144,785.76, 216,882.98 and 74,517.45 is: 111,624.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,785.76 : 216,882.98 = 74,517.45 : x
  2. Step 2: Convert to fraction form
    144,785.76/216,882.98 = 74,517.45/x
  3. Step 3: Cross multiply
    144,785.76x = 216,882.98 × 74,517.45
  4. Step 4: Simplify right side
    144,785.76x = 16,161,566,618.00
  5. Step 5: Solve for x
    x = 16,161,566,618.00/144,785.76
  6. Step 6: Final answer
    x = 111,624.01

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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.