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Finding the Fourth Proportional to 61,358.40, 92,037.60 and 43,643.70

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Solution

The fourth proportional to 61,358.40, 92,037.60 and 43,643.70 is: 65,465.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,358.40 : 92,037.60 = 43,643.70 : x
  2. Step 2: Convert to fraction form
    61,358.40/92,037.60 = 43,643.70/x
  3. Step 3: Cross multiply
    61,358.40x = 92,037.60 × 43,643.70
  4. Step 4: Simplify right side
    61,358.40x = 4,016,861,403.12
  5. Step 5: Solve for x
    x = 4,016,861,403.12/61,358.40
  6. Step 6: Final answer
    x = 65,465.55

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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.