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Finding the Fourth Proportional to 374,158.20, 561,237.30 and 187,534.20

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Solution

The fourth proportional to 374,158.20, 561,237.30 and 187,534.20 is: 281,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,158.20 : 561,237.30 = 187,534.20 : x
  2. Step 2: Convert to fraction form
    374,158.20/561,237.30 = 187,534.20/x
  3. Step 3: Cross multiply
    374,158.20x = 561,237.30 × 187,534.20
  4. Step 4: Simplify right side
    374,158.20x = 105,251,188,065.66
  5. Step 5: Solve for x
    x = 105,251,188,065.66/374,158.20
  6. Step 6: Final answer
    x = 281,301.30

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1.5x scale

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.