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Finding the Fourth Proportional to 115,218, 159,000.88 and 62,226

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Solution

The fourth proportional to 115,218, 159,000.88 and 62,226 is: 85,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,218 : 159,000.88 = 62,226 : x
  2. Step 2: Convert to fraction form
    115,218/159,000.88 = 62,226/x
  3. Step 3: Cross multiply
    115,218x = 159,000.88 × 62,226
  4. Step 4: Simplify right side
    115,218x = 9,893,988,758.88
  5. Step 5: Solve for x
    x = 9,893,988,758.88/115,218
  6. Step 6: Final answer
    x = 85,871.90

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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.