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Finding the Fourth Proportional to 65,118.20, 97,823.10 and 62,639.60

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Solution

The fourth proportional to 65,118.20, 97,823.10 and 62,639.60 is: 94,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,118.20 : 97,823.10 = 62,639.60 : x
  2. Step 2: Convert to fraction form
    65,118.20/97,823.10 = 62,639.60/x
  3. Step 3: Cross multiply
    65,118.20x = 97,823.10 × 62,639.60
  4. Step 4: Simplify right side
    65,118.20x = 6,127,599,854.76
  5. Step 5: Solve for x
    x = 6,127,599,854.76/65,118.20
  6. Step 6: Final answer
    x = 94,099.65

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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.