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Finding the Fourth Proportional to 160,479.96, 221,459.46 and 88,859.76

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Solution

The fourth proportional to 160,479.96, 221,459.46 and 88,859.76 is: 122,624.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,479.96 : 221,459.46 = 88,859.76 : x
  2. Step 2: Convert to fraction form
    160,479.96/221,459.46 = 88,859.76/x
  3. Step 3: Cross multiply
    160,479.96x = 221,459.46 × 88,859.76
  4. Step 4: Simplify right side
    160,479.96x = 19,678,834,465.33
  5. Step 5: Solve for x
    x = 19,678,834,465.33/160,479.96
  6. Step 6: Final answer
    x = 122,624.87

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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.