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Finding the Fourth Proportional to 116,348.68, 174,531.81 and 45,240.76

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Solution

The fourth proportional to 116,348.68, 174,531.81 and 45,240.76 is: 67,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,348.68 : 174,531.81 = 45,240.76 : x
  2. Step 2: Convert to fraction form
    116,348.68/174,531.81 = 45,240.76/x
  3. Step 3: Cross multiply
    116,348.68x = 174,531.81 × 45,240.76
  4. Step 4: Simplify right side
    116,348.68x = 7,895,950,855.92
  5. Step 5: Solve for x
    x = 7,895,950,855.92/116,348.68
  6. Step 6: Final answer
    x = 67,864.55

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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.