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Finding the Fourth Proportional to 75,058.50, 112,587.86 and 18,898.62

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Solution

The fourth proportional to 75,058.50, 112,587.86 and 18,898.62 is: 28,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,058.50 : 112,587.86 = 18,898.62 : x
  2. Step 2: Convert to fraction form
    75,058.50/112,587.86 = 18,898.62/x
  3. Step 3: Cross multiply
    75,058.50x = 112,587.86 × 18,898.62
  4. Step 4: Simplify right side
    75,058.50x = 2,127,755,182.75
  5. Step 5: Solve for x
    x = 2,127,755,182.75/75,058.50
  6. Step 6: Final answer
    x = 28,347.96

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