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Finding the Fourth Proportional to 229,920.66, 344,895.57 and 72,155.34

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Solution

The fourth proportional to 229,920.66, 344,895.57 and 72,155.34 is: 108,237.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,920.66 : 344,895.57 = 72,155.34 : x
  2. Step 2: Convert to fraction form
    229,920.66/344,895.57 = 72,155.34/x
  3. Step 3: Cross multiply
    229,920.66x = 344,895.57 × 72,155.34
  4. Step 4: Simplify right side
    229,920.66x = 24,886,057,117.84
  5. Step 5: Solve for x
    x = 24,886,057,117.84/229,920.66
  6. Step 6: Final answer
    x = 108,237.59

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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.