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Finding the Fourth Proportional to 124,934.94, 187,227.45 and 65,681.82

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Solution

The fourth proportional to 124,934.94, 187,227.45 and 65,681.82 is: 98,430.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,934.94 : 187,227.45 = 65,681.82 : x
  2. Step 2: Convert to fraction form
    124,934.94/187,227.45 = 65,681.82/x
  3. Step 3: Cross multiply
    124,934.94x = 187,227.45 × 65,681.82
  4. Step 4: Simplify right side
    124,934.94x = 12,297,439,669.96
  5. Step 5: Solve for x
    x = 12,297,439,669.96/124,934.94
  6. Step 6: Final answer
    x = 98,430.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.