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Finding the Fourth Proportional to 266,060.20, 398,434.20 and 176,830.60

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Solution

The fourth proportional to 266,060.20, 398,434.20 and 176,830.60 is: 264,809.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,060.20 : 398,434.20 = 176,830.60 : x
  2. Step 2: Convert to fraction form
    266,060.20/398,434.20 = 176,830.60/x
  3. Step 3: Cross multiply
    266,060.20x = 398,434.20 × 176,830.60
  4. Step 4: Simplify right side
    266,060.20x = 70,455,358,646.52
  5. Step 5: Solve for x
    x = 70,455,358,646.52/266,060.20
  6. Step 6: Final answer
    x = 264,809.84

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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.