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Finding the Fourth Proportional to 145,010.68, 217,258.43 and 60,584.90

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Solution

The fourth proportional to 145,010.68, 217,258.43 and 60,584.90 is: 90,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,010.68 : 217,258.43 = 60,584.90 : x
  2. Step 2: Convert to fraction form
    145,010.68/217,258.43 = 60,584.90/x
  3. Step 3: Cross multiply
    145,010.68x = 217,258.43 × 60,584.90
  4. Step 4: Simplify right side
    145,010.68x = 13,162,578,866.49
  5. Step 5: Solve for x
    x = 13,162,578,866.49/145,010.68
  6. Step 6: Final answer
    x = 90,769.72

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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.