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Finding the Fourth Proportional to 65,737.60, 98,460.60 and 56,989.60

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Solution

The fourth proportional to 65,737.60, 98,460.60 and 56,989.60 is: 85,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,737.60 : 98,460.60 = 56,989.60 : x
  2. Step 2: Convert to fraction form
    65,737.60/98,460.60 = 56,989.60/x
  3. Step 3: Cross multiply
    65,737.60x = 98,460.60 × 56,989.60
  4. Step 4: Simplify right side
    65,737.60x = 5,611,230,209.76
  5. Step 5: Solve for x
    x = 5,611,230,209.76/65,737.60
  6. Step 6: Final answer
    x = 85,358.00

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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.