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Finding the Fourth Proportional to 145,011.26, 217,527.26 and 60,686.52

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Solution

The fourth proportional to 145,011.26, 217,527.26 and 60,686.52 is: 91,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,011.26 : 217,527.26 = 60,686.52 : x
  2. Step 2: Convert to fraction form
    145,011.26/217,527.26 = 60,686.52/x
  3. Step 3: Cross multiply
    145,011.26x = 217,527.26 × 60,686.52
  4. Step 4: Simplify right side
    145,011.26x = 13,200,971,295.38
  5. Step 5: Solve for x
    x = 13,200,971,295.38/145,011.26
  6. Step 6: Final answer
    x = 91,034.11

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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.