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Finding the Fourth Proportional to 125,167.88, 187,594.12 and 89,443.12

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Solution

The fourth proportional to 125,167.88, 187,594.12 and 89,443.12 is: 134,051.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,167.88 : 187,594.12 = 89,443.12 : x
  2. Step 2: Convert to fraction form
    125,167.88/187,594.12 = 89,443.12/x
  3. Step 3: Cross multiply
    125,167.88x = 187,594.12 × 89,443.12
  4. Step 4: Simplify right side
    125,167.88x = 16,779,003,386.45
  5. Step 5: Solve for x
    x = 16,779,003,386.45/125,167.88
  6. Step 6: Final answer
    x = 134,051.99

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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.