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Finding the Fourth Proportional to 72,368.46, 108,365.70 and 49,948.29

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Solution

The fourth proportional to 72,368.46, 108,365.70 and 49,948.29 is: 74,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,368.46 : 108,365.70 = 49,948.29 : x
  2. Step 2: Convert to fraction form
    72,368.46/108,365.70 = 49,948.29/x
  3. Step 3: Cross multiply
    72,368.46x = 108,365.70 × 49,948.29
  4. Step 4: Simplify right side
    72,368.46x = 5,412,681,409.65
  5. Step 5: Solve for x
    x = 5,412,681,409.65/72,368.46
  6. Step 6: Final answer
    x = 74,793.38

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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.