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Finding the Fourth Proportional to 160,165.76, 221,035.20 and 88,545.92

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Solution

The fourth proportional to 160,165.76, 221,035.20 and 88,545.92 is: 122,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,165.76 : 221,035.20 = 88,545.92 : x
  2. Step 2: Convert to fraction form
    160,165.76/221,035.20 = 88,545.92/x
  3. Step 3: Cross multiply
    160,165.76x = 221,035.20 × 88,545.92
  4. Step 4: Simplify right side
    160,165.76x = 19,571,765,136.38
  5. Step 5: Solve for x
    x = 19,571,765,136.38/160,165.76
  6. Step 6: Final answer
    x = 122,196.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.