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Finding the Fourth Proportional to 89,463.60, 123,464.52 and 53,655.12

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Solution

The fourth proportional to 89,463.60, 123,464.52 and 53,655.12 is: 74,046.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,463.60 : 123,464.52 = 53,655.12 : x
  2. Step 2: Convert to fraction form
    89,463.60/123,464.52 = 53,655.12/x
  3. Step 3: Cross multiply
    89,463.60x = 123,464.52 × 53,655.12
  4. Step 4: Simplify right side
    89,463.60x = 6,624,503,636.34
  5. Step 5: Solve for x
    x = 6,624,503,636.34/89,463.60
  6. Step 6: Final answer
    x = 74,046.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.