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Finding the Fourth Proportional to 374,092.80, 561,139.20 and 187,036.80

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Solution

The fourth proportional to 374,092.80, 561,139.20 and 187,036.80 is: 280,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,092.80 : 561,139.20 = 187,036.80 : x
  2. Step 2: Convert to fraction form
    374,092.80/561,139.20 = 187,036.80/x
  3. Step 3: Cross multiply
    374,092.80x = 561,139.20 × 187,036.80
  4. Step 4: Simplify right side
    374,092.80x = 104,953,680,322.56
  5. Step 5: Solve for x
    x = 104,953,680,322.56/374,092.80
  6. Step 6: Final answer
    x = 280,555.20

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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.