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Finding the Fourth Proportional to 170,658.77, 255,492.36 and 99,363.92

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Solution

The fourth proportional to 170,658.77, 255,492.36 and 99,363.92 is: 148,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,658.77 : 255,492.36 = 99,363.92 : x
  2. Step 2: Convert to fraction form
    170,658.77/255,492.36 = 99,363.92/x
  3. Step 3: Cross multiply
    170,658.77x = 255,492.36 × 99,363.92
  4. Step 4: Simplify right side
    170,658.77x = 25,386,721,142.19
  5. Step 5: Solve for x
    x = 25,386,721,142.19/170,658.77
  6. Step 6: Final answer
    x = 148,757.21

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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.