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Finding the Fourth Proportional to 266,892.16, 400,363.08 and 98,405.68

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Solution

The fourth proportional to 266,892.16, 400,363.08 and 98,405.68 is: 147,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,892.16 : 400,363.08 = 98,405.68 : x
  2. Step 2: Convert to fraction form
    266,892.16/400,363.08 = 98,405.68/x
  3. Step 3: Cross multiply
    266,892.16x = 400,363.08 × 98,405.68
  4. Step 4: Simplify right side
    266,892.16x = 39,398,001,134.29
  5. Step 5: Solve for x
    x = 39,398,001,134.29/266,892.16
  6. Step 6: Final answer
    x = 147,617.68

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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.