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Finding the Fourth Proportional to 89,754.40, 123,822.13 and 53,435.52

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Solution

The fourth proportional to 89,754.40, 123,822.13 and 53,435.52 is: 73,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,754.40 : 123,822.13 = 53,435.52 : x
  2. Step 2: Convert to fraction form
    89,754.40/123,822.13 = 53,435.52/x
  3. Step 3: Cross multiply
    89,754.40x = 123,822.13 × 53,435.52
  4. Step 4: Simplify right side
    89,754.40x = 6,616,499,904.06
  5. Step 5: Solve for x
    x = 6,616,499,904.06/89,754.40
  6. Step 6: Final answer
    x = 73,717.83

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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.