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Finding the Fourth Proportional to 89,952.64, 124,139.51 and 49,666.28

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Solution

The fourth proportional to 89,952.64, 124,139.51 and 49,666.28 is: 68,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,952.64 : 124,139.51 = 49,666.28 : x
  2. Step 2: Convert to fraction form
    89,952.64/124,139.51 = 49,666.28/x
  3. Step 3: Cross multiply
    89,952.64x = 124,139.51 × 49,666.28
  4. Step 4: Simplify right side
    89,952.64x = 6,165,547,662.72
  5. Step 5: Solve for x
    x = 6,165,547,662.72/89,952.64
  6. Step 6: Final answer
    x = 68,542.15

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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.