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Finding the Fourth Proportional to 127,601.66, 175,785.72 and 89,289.74

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Solution

The fourth proportional to 127,601.66, 175,785.72 and 89,289.74 is: 123,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,601.66 : 175,785.72 = 89,289.74 : x
  2. Step 2: Convert to fraction form
    127,601.66/175,785.72 = 89,289.74/x
  3. Step 3: Cross multiply
    127,601.66x = 175,785.72 × 89,289.74
  4. Step 4: Simplify right side
    127,601.66x = 15,695,861,234.51
  5. Step 5: Solve for x
    x = 15,695,861,234.51/127,601.66
  6. Step 6: Final answer
    x = 123,006.72

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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.