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Finding the Fourth Proportional to 266,547.46, 399,842.22 and 89,055.10

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Solution

The fourth proportional to 266,547.46, 399,842.22 and 89,055.10 is: 133,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,547.46 : 399,842.22 = 89,055.10 : x
  2. Step 2: Convert to fraction form
    266,547.46/399,842.22 = 89,055.10/x
  3. Step 3: Cross multiply
    266,547.46x = 399,842.22 × 89,055.10
  4. Step 4: Simplify right side
    266,547.46x = 35,607,987,470.97
  5. Step 5: Solve for x
    x = 35,607,987,470.97/266,547.46
  6. Step 6: Final answer
    x = 133,589.67

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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.