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Finding the Fourth Proportional to 75,062.76, 112,403.68 and 45,058.34

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Solution

The fourth proportional to 75,062.76, 112,403.68 and 45,058.34 is: 67,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,062.76 : 112,403.68 = 45,058.34 : x
  2. Step 2: Convert to fraction form
    75,062.76/112,403.68 = 45,058.34/x
  3. Step 3: Cross multiply
    75,062.76x = 112,403.68 × 45,058.34
  4. Step 4: Simplify right side
    75,062.76x = 5,064,723,230.69
  5. Step 5: Solve for x
    x = 5,064,723,230.69/75,062.76
  6. Step 6: Final answer
    x = 67,473.18

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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.