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Finding the Fourth Proportional to 131,566.60, 197,123.10 and 61,301.80

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Solution

The fourth proportional to 131,566.60, 197,123.10 and 61,301.80 is: 91,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,566.60 : 197,123.10 = 61,301.80 : x
  2. Step 2: Convert to fraction form
    131,566.60/197,123.10 = 61,301.80/x
  3. Step 3: Cross multiply
    131,566.60x = 197,123.10 × 61,301.80
  4. Step 4: Simplify right side
    131,566.60x = 12,084,000,851.58
  5. Step 5: Solve for x
    x = 12,084,000,851.58/131,566.60
  6. Step 6: Final answer
    x = 91,847.03

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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.