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Finding the Fourth Proportional to 372,210.30, 558,315.45 and 194,771.70

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Solution

The fourth proportional to 372,210.30, 558,315.45 and 194,771.70 is: 292,157.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,210.30 : 558,315.45 = 194,771.70 : x
  2. Step 2: Convert to fraction form
    372,210.30/558,315.45 = 194,771.70/x
  3. Step 3: Cross multiply
    372,210.30x = 558,315.45 × 194,771.70
  4. Step 4: Simplify right side
    372,210.30x = 108,744,049,332.77
  5. Step 5: Solve for x
    x = 108,744,049,332.77/372,210.30
  6. Step 6: Final answer
    x = 292,157.55

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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.