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Finding the Fourth Proportional to 219,552.98, 328,803.17 and 112,655.61

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Solution

The fourth proportional to 219,552.98, 328,803.17 and 112,655.61 is: 168,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,552.98 : 328,803.17 = 112,655.61 : x
  2. Step 2: Convert to fraction form
    219,552.98/328,803.17 = 112,655.61/x
  3. Step 3: Cross multiply
    219,552.98x = 328,803.17 × 112,655.61
  4. Step 4: Simplify right side
    219,552.98x = 37,041,521,123.01
  5. Step 5: Solve for x
    x = 37,041,521,123.01/219,552.98
  6. Step 6: Final answer
    x = 168,713.36

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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.