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Finding the Fourth Proportional to 292,610.58, 438,915.85 and 82,248.51

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Solution

The fourth proportional to 292,610.58, 438,915.85 and 82,248.51 is: 123,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,610.58 : 438,915.85 = 82,248.51 : x
  2. Step 2: Convert to fraction form
    292,610.58/438,915.85 = 82,248.51/x
  3. Step 3: Cross multiply
    292,610.58x = 438,915.85 × 82,248.51
  4. Step 4: Simplify right side
    292,610.58x = 36,100,176,118.20
  5. Step 5: Solve for x
    x = 36,100,176,118.20/292,610.58
  6. Step 6: Final answer
    x = 123,372.77

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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.