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Finding the Fourth Proportional to 435,830.70, 653,616.45 and 169,437.90

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Solution

The fourth proportional to 435,830.70, 653,616.45 and 169,437.90 is: 254,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,830.70 : 653,616.45 = 169,437.90 : x
  2. Step 2: Convert to fraction form
    435,830.70/653,616.45 = 169,437.90/x
  3. Step 3: Cross multiply
    435,830.70x = 653,616.45 × 169,437.90
  4. Step 4: Simplify right side
    435,830.70x = 110,747,398,693.46
  5. Step 5: Solve for x
    x = 110,747,398,693.46/435,830.70
  6. Step 6: Final answer
    x = 254,106.47

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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.