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Finding the Fourth Proportional to 158,502.61, 218,756.01 and 98,092.72

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Solution

The fourth proportional to 158,502.61, 218,756.01 and 98,092.72 is: 135,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,502.61 : 218,756.01 = 98,092.72 : x
  2. Step 2: Convert to fraction form
    158,502.61/218,756.01 = 98,092.72/x
  3. Step 3: Cross multiply
    158,502.61x = 218,756.01 × 98,092.72
  4. Step 4: Simplify right side
    158,502.61x = 21,458,372,037.25
  5. Step 5: Solve for x
    x = 21,458,372,037.25/158,502.61
  6. Step 6: Final answer
    x = 135,381.82

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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.