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Finding the Fourth Proportional to 432,810.80, 649,253.10 and 113,005.10

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Solution

The fourth proportional to 432,810.80, 649,253.10 and 113,005.10 is: 169,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,810.80 : 649,253.10 = 113,005.10 : x
  2. Step 2: Convert to fraction form
    432,810.80/649,253.10 = 113,005.10/x
  3. Step 3: Cross multiply
    432,810.80x = 649,253.10 × 113,005.10
  4. Step 4: Simplify right side
    432,810.80x = 73,368,911,490.81
  5. Step 5: Solve for x
    x = 73,368,911,490.81/432,810.80
  6. Step 6: Final answer
    x = 169,517.28

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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.