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Finding the Fourth Proportional to 372,124.40, 558,186.60 and 266,716.40

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Solution

The fourth proportional to 372,124.40, 558,186.60 and 266,716.40 is: 400,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,124.40 : 558,186.60 = 266,716.40 : x
  2. Step 2: Convert to fraction form
    372,124.40/558,186.60 = 266,716.40/x
  3. Step 3: Cross multiply
    372,124.40x = 558,186.60 × 266,716.40
  4. Step 4: Simplify right side
    372,124.40x = 148,877,520,480.24
  5. Step 5: Solve for x
    x = 148,877,520,480.24/372,124.40
  6. Step 6: Final answer
    x = 400,074.60

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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.