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Finding the Fourth Proportional to 124,473.32, 171,774.36 and 67,884.72

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Solution

The fourth proportional to 124,473.32, 171,774.36 and 67,884.72 is: 93,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,473.32 : 171,774.36 = 67,884.72 : x
  2. Step 2: Convert to fraction form
    124,473.32/171,774.36 = 67,884.72/x
  3. Step 3: Cross multiply
    124,473.32x = 171,774.36 × 67,884.72
  4. Step 4: Simplify right side
    124,473.32x = 11,660,854,331.78
  5. Step 5: Solve for x
    x = 11,660,854,331.78/124,473.32
  6. Step 6: Final answer
    x = 93,681.56

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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.