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Finding the Fourth Proportional to 145,335.81, 217,932.60 and 59,930.70

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Solution

The fourth proportional to 145,335.81, 217,932.60 and 59,930.70 is: 89,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,335.81 : 217,932.60 = 59,930.70 : x
  2. Step 2: Convert to fraction form
    145,335.81/217,932.60 = 59,930.70/x
  3. Step 3: Cross multiply
    145,335.81x = 217,932.60 × 59,930.70
  4. Step 4: Simplify right side
    145,335.81x = 13,060,853,270.82
  5. Step 5: Solve for x
    x = 13,060,853,270.82/145,335.81
  6. Step 6: Final answer
    x = 89,866.73

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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.