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Finding the Fourth Proportional to 131,615.60, 197,374.80 and 65,033.60

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Solution

The fourth proportional to 131,615.60, 197,374.80 and 65,033.60 is: 97,526.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,615.60 : 197,374.80 = 65,033.60 : x
  2. Step 2: Convert to fraction form
    131,615.60/197,374.80 = 65,033.60/x
  3. Step 3: Cross multiply
    131,615.60x = 197,374.80 × 65,033.60
  4. Step 4: Simplify right side
    131,615.60x = 12,835,993,793.28
  5. Step 5: Solve for x
    x = 12,835,993,793.28/131,615.60
  6. Step 6: Final answer
    x = 97,526.39

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1.5x scale

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.