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Finding the Fourth Proportional to 230,661.45, 345,828.13 and 88,386.17

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Solution

The fourth proportional to 230,661.45, 345,828.13 and 88,386.17 is: 132,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,661.45 : 345,828.13 = 88,386.17 : x
  2. Step 2: Convert to fraction form
    230,661.45/345,828.13 = 88,386.17/x
  3. Step 3: Cross multiply
    230,661.45x = 345,828.13 × 88,386.17
  4. Step 4: Simplify right side
    230,661.45x = 30,566,421,938.86
  5. Step 5: Solve for x
    x = 30,566,421,938.86/230,661.45
  6. Step 6: Final answer
    x = 132,516.39

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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.