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Finding the Fourth Proportional to 145,038.92, 217,531.92 and 60,776.54

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Solution

The fourth proportional to 145,038.92, 217,531.92 and 60,776.54 is: 91,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,038.92 : 217,531.92 = 60,776.54 : x
  2. Step 2: Convert to fraction form
    145,038.92/217,531.92 = 60,776.54/x
  3. Step 3: Cross multiply
    145,038.92x = 217,531.92 × 60,776.54
  4. Step 4: Simplify right side
    145,038.92x = 13,220,837,437.16
  5. Step 5: Solve for x
    x = 13,220,837,437.16/145,038.92
  6. Step 6: Final answer
    x = 91,153.72

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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.