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Finding the Fourth Proportional to 266,707.13, 400,060.69 and 69,715.13

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Solution

The fourth proportional to 266,707.13, 400,060.69 and 69,715.13 is: 104,572.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,707.13 : 400,060.69 = 69,715.13 : x
  2. Step 2: Convert to fraction form
    266,707.13/400,060.69 = 69,715.13/x
  3. Step 3: Cross multiply
    266,707.13x = 400,060.69 × 69,715.13
  4. Step 4: Simplify right side
    266,707.13x = 27,890,280,836.65
  5. Step 5: Solve for x
    x = 27,890,280,836.65/266,707.13
  6. Step 6: Final answer
    x = 104,572.69

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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.