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Finding the Fourth Proportional to 65,587.60, 98,600.10 and 55,964.80

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Solution

The fourth proportional to 65,587.60, 98,600.10 and 55,964.80 is: 84,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,587.60 : 98,600.10 = 55,964.80 : x
  2. Step 2: Convert to fraction form
    65,587.60/98,600.10 = 55,964.80/x
  3. Step 3: Cross multiply
    65,587.60x = 98,600.10 × 55,964.80
  4. Step 4: Simplify right side
    65,587.60x = 5,518,134,876.48
  5. Step 5: Solve for x
    x = 5,518,134,876.48/65,587.60
  6. Step 6: Final answer
    x = 84,133.81

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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.