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Finding the Fourth Proportional to 90,062.65, 124,301.58 and 60,977.82

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Solution

The fourth proportional to 90,062.65, 124,301.58 and 60,977.82 is: 84,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,062.65 : 124,301.58 = 60,977.82 : x
  2. Step 2: Convert to fraction form
    90,062.65/124,301.58 = 60,977.82/x
  3. Step 3: Cross multiply
    90,062.65x = 124,301.58 × 60,977.82
  4. Step 4: Simplify right side
    90,062.65x = 7,579,639,608.42
  5. Step 5: Solve for x
    x = 7,579,639,608.42/90,062.65
  6. Step 6: Final answer
    x = 84,159.63

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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.