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Finding the Fourth Proportional to 435,038.80, 652,795.96 and 168,809.76

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Solution

The fourth proportional to 435,038.80, 652,795.96 and 168,809.76 is: 253,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,038.80 : 652,795.96 = 168,809.76 : x
  2. Step 2: Convert to fraction form
    435,038.80/652,795.96 = 168,809.76/x
  3. Step 3: Cross multiply
    435,038.80x = 652,795.96 × 168,809.76
  4. Step 4: Simplify right side
    435,038.80x = 110,198,329,336.57
  5. Step 5: Solve for x
    x = 110,198,329,336.57/435,038.80
  6. Step 6: Final answer
    x = 253,306.90

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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.