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Finding the Fourth Proportional to 292,898.73, 439,597.73 and 115,530.30

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Solution

The fourth proportional to 292,898.73, 439,597.73 and 115,530.30 is: 173,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,898.73 : 439,597.73 = 115,530.30 : x
  2. Step 2: Convert to fraction form
    292,898.73/439,597.73 = 115,530.30/x
  3. Step 3: Cross multiply
    292,898.73x = 439,597.73 × 115,530.30
  4. Step 4: Simplify right side
    292,898.73x = 50,786,857,915.04
  5. Step 5: Solve for x
    x = 50,786,857,915.04/292,898.73
  6. Step 6: Final answer
    x = 173,393.91

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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.