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Finding the Fourth Proportional to 324,696.25, 487,043.16 and 88,038.28

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Solution

The fourth proportional to 324,696.25, 487,043.16 and 88,038.28 is: 132,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,696.25 : 487,043.16 = 88,038.28 : x
  2. Step 2: Convert to fraction form
    324,696.25/487,043.16 = 88,038.28/x
  3. Step 3: Cross multiply
    324,696.25x = 487,043.16 × 88,038.28
  4. Step 4: Simplify right side
    324,696.25x = 42,878,442,092.16
  5. Step 5: Solve for x
    x = 42,878,442,092.16/324,696.25
  6. Step 6: Final answer
    x = 132,057.09

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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.