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Finding the Fourth Proportional to 355,020.11, 532,534.88 and 118,362.87

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Solution

The fourth proportional to 355,020.11, 532,534.88 and 118,362.87 is: 177,545.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,020.11 : 532,534.88 = 118,362.87 : x
  2. Step 2: Convert to fraction form
    355,020.11/532,534.88 = 118,362.87/x
  3. Step 3: Cross multiply
    355,020.11x = 532,534.88 × 118,362.87
  4. Step 4: Simplify right side
    355,020.11x = 63,032,356,734.92
  5. Step 5: Solve for x
    x = 63,032,356,734.92/355,020.11
  6. Step 6: Final answer
    x = 177,545.87

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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.