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Finding the Fourth Proportional to 266,023.80, 399,294.90 and 133,054.20

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Solution

The fourth proportional to 266,023.80, 399,294.90 and 133,054.20 is: 199,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,023.80 : 399,294.90 = 133,054.20 : x
  2. Step 2: Convert to fraction form
    266,023.80/399,294.90 = 133,054.20/x
  3. Step 3: Cross multiply
    266,023.80x = 399,294.90 × 133,054.20
  4. Step 4: Simplify right side
    266,023.80x = 53,127,863,483.58
  5. Step 5: Solve for x
    x = 53,127,863,483.58/266,023.80
  6. Step 6: Final answer
    x = 199,710.94

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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.