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Finding the Fourth Proportional to 417,312.46, 626,017.56 and 132,903.10

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Solution

The fourth proportional to 417,312.46, 626,017.56 and 132,903.10 is: 199,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,312.46 : 626,017.56 = 132,903.10 : x
  2. Step 2: Convert to fraction form
    417,312.46/626,017.56 = 132,903.10/x
  3. Step 3: Cross multiply
    417,312.46x = 626,017.56 × 132,903.10
  4. Step 4: Simplify right side
    417,312.46x = 83,199,674,378.44
  5. Step 5: Solve for x
    x = 83,199,674,378.44/417,312.46
  6. Step 6: Final answer
    x = 199,370.21

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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.