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Finding the Fourth Proportional to 373,187.20, 559,853.70 and 148,509.40

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Solution

The fourth proportional to 373,187.20, 559,853.70 and 148,509.40 is: 222,793.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,187.20 : 559,853.70 = 148,509.40 : x
  2. Step 2: Convert to fraction form
    373,187.20/559,853.70 = 148,509.40/x
  3. Step 3: Cross multiply
    373,187.20x = 559,853.70 × 148,509.40
  4. Step 4: Simplify right side
    373,187.20x = 83,143,537,074.78
  5. Step 5: Solve for x
    x = 83,143,537,074.78/373,187.20
  6. Step 6: Final answer
    x = 222,793.11

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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.