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Finding the Fourth Proportional to 266,182.72, 399,345.90 and 116,436.40

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Solution

The fourth proportional to 266,182.72, 399,345.90 and 116,436.40 is: 174,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,182.72 : 399,345.90 = 116,436.40 : x
  2. Step 2: Convert to fraction form
    266,182.72/399,345.90 = 116,436.40/x
  3. Step 3: Cross multiply
    266,182.72x = 399,345.90 × 116,436.40
  4. Step 4: Simplify right side
    266,182.72x = 46,498,398,950.76
  5. Step 5: Solve for x
    x = 46,498,398,950.76/266,182.72
  6. Step 6: Final answer
    x = 174,686.02

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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.