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Finding the Fourth Proportional to 435,895.20, 653,713.20 and 169,502.40

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Solution

The fourth proportional to 435,895.20, 653,713.20 and 169,502.40 is: 254,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,895.20 : 653,713.20 = 169,502.40 : x
  2. Step 2: Convert to fraction form
    435,895.20/653,713.20 = 169,502.40/x
  3. Step 3: Cross multiply
    435,895.20x = 653,713.20 × 169,502.40
  4. Step 4: Simplify right side
    435,895.20x = 110,805,956,311.68
  5. Step 5: Solve for x
    x = 110,805,956,311.68/435,895.20
  6. Step 6: Final answer
    x = 254,203.20

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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.