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Finding the Fourth Proportional to 90,176.92, 124,484.01 and 53,891.17

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Solution

The fourth proportional to 90,176.92, 124,484.01 and 53,891.17 is: 74,393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,176.92 : 124,484.01 = 53,891.17 : x
  2. Step 2: Convert to fraction form
    90,176.92/124,484.01 = 53,891.17/x
  3. Step 3: Cross multiply
    90,176.92x = 124,484.01 × 53,891.17
  4. Step 4: Simplify right side
    90,176.92x = 6,708,588,431.89
  5. Step 5: Solve for x
    x = 6,708,588,431.89/90,176.92
  6. Step 6: Final answer
    x = 74,393.63

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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.