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Finding the Fourth Proportional to 435,447.40, 653,047.74 and 169,151.08

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Solution

The fourth proportional to 435,447.40, 653,047.74 and 169,151.08 is: 253,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,447.40 : 653,047.74 = 169,151.08 : x
  2. Step 2: Convert to fraction form
    435,447.40/653,047.74 = 169,151.08/x
  3. Step 3: Cross multiply
    435,447.40x = 653,047.74 × 169,151.08
  4. Step 4: Simplify right side
    435,447.40x = 110,463,730,512.56
  5. Step 5: Solve for x
    x = 110,463,730,512.56/435,447.40
  6. Step 6: Final answer
    x = 253,678.70

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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.