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Finding the Fourth Proportional to 144,625.01, 216,854.45 and 77,073.87

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Solution

The fourth proportional to 144,625.01, 216,854.45 and 77,073.87 is: 115,566.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,625.01 : 216,854.45 = 77,073.87 : x
  2. Step 2: Convert to fraction form
    144,625.01/216,854.45 = 77,073.87/x
  3. Step 3: Cross multiply
    144,625.01x = 216,854.45 × 77,073.87
  4. Step 4: Simplify right side
    144,625.01x = 16,713,811,880.91
  5. Step 5: Solve for x
    x = 16,713,811,880.91/144,625.01
  6. Step 6: Final answer
    x = 115,566.54

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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.