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Finding the Fourth Proportional to 124,291.76, 186,406.32 and 35,545.76

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Solution

The fourth proportional to 124,291.76, 186,406.32 and 35,545.76 is: 53,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,291.76 : 186,406.32 = 35,545.76 : x
  2. Step 2: Convert to fraction form
    124,291.76/186,406.32 = 35,545.76/x
  3. Step 3: Cross multiply
    124,291.76x = 186,406.32 × 35,545.76
  4. Step 4: Simplify right side
    124,291.76x = 6,625,954,313.20
  5. Step 5: Solve for x
    x = 6,625,954,313.20/124,291.76
  6. Step 6: Final answer
    x = 53,309.68

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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.