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Finding the Fourth Proportional to 74,658.60, 112,020.30 and 37,722.60

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Solution

The fourth proportional to 74,658.60, 112,020.30 and 37,722.60 is: 56,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,658.60 : 112,020.30 = 37,722.60 : x
  2. Step 2: Convert to fraction form
    74,658.60/112,020.30 = 37,722.60/x
  3. Step 3: Cross multiply
    74,658.60x = 112,020.30 × 37,722.60
  4. Step 4: Simplify right side
    74,658.60x = 4,225,696,968.78
  5. Step 5: Solve for x
    x = 4,225,696,968.78/74,658.60
  6. Step 6: Final answer
    x = 56,600.27

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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.