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Finding the Fourth Proportional to 122,532.80, 183,712.70 and 47,590.52

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Solution

The fourth proportional to 122,532.80, 183,712.70 and 47,590.52 is: 71,352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,532.80 : 183,712.70 = 47,590.52 : x
  2. Step 2: Convert to fraction form
    122,532.80/183,712.70 = 47,590.52/x
  3. Step 3: Cross multiply
    122,532.80x = 183,712.70 × 47,590.52
  4. Step 4: Simplify right side
    122,532.80x = 8,742,982,923.60
  5. Step 5: Solve for x
    x = 8,742,982,923.60/122,532.80
  6. Step 6: Final answer
    x = 71,352.18

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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.