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Finding the Fourth Proportional to 266,109.20, 399,163.80 and 176,296.40

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Solution

The fourth proportional to 266,109.20, 399,163.80 and 176,296.40 is: 264,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,109.20 : 399,163.80 = 176,296.40 : x
  2. Step 2: Convert to fraction form
    266,109.20/399,163.80 = 176,296.40/x
  3. Step 3: Cross multiply
    266,109.20x = 399,163.80 × 176,296.40
  4. Step 4: Simplify right side
    266,109.20x = 70,371,140,950.32
  5. Step 5: Solve for x
    x = 70,371,140,950.32/266,109.20
  6. Step 6: Final answer
    x = 264,444.60

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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.