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Finding the Fourth Proportional to 62,421.60, 93,632.40 and 61,384.80

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Solution

The fourth proportional to 62,421.60, 93,632.40 and 61,384.80 is: 92,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,421.60 : 93,632.40 = 61,384.80 : x
  2. Step 2: Convert to fraction form
    62,421.60/93,632.40 = 61,384.80/x
  3. Step 3: Cross multiply
    62,421.60x = 93,632.40 × 61,384.80
  4. Step 4: Simplify right side
    62,421.60x = 5,747,606,147.52
  5. Step 5: Solve for x
    x = 5,747,606,147.52/62,421.60
  6. Step 6: Final answer
    x = 92,077.20

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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.