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Finding the Fourth Proportional to 417,423.80, 626,237.60 and 133,114.35

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Solution

The fourth proportional to 417,423.80, 626,237.60 and 133,114.35 is: 199,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,423.80 : 626,237.60 = 133,114.35 : x
  2. Step 2: Convert to fraction form
    417,423.80/626,237.60 = 133,114.35/x
  3. Step 3: Cross multiply
    417,423.80x = 626,237.60 × 133,114.35
  4. Step 4: Simplify right side
    417,423.80x = 83,361,213,875.53
  5. Step 5: Solve for x
    x = 83,361,213,875.53/417,423.80
  6. Step 6: Final answer
    x = 199,704.03

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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.