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Finding the Fourth Proportional to 292,356.72, 438,580.80 and 123,877.44

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Solution

The fourth proportional to 292,356.72, 438,580.80 and 123,877.44 is: 185,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,356.72 : 438,580.80 = 123,877.44 : x
  2. Step 2: Convert to fraction form
    292,356.72/438,580.80 = 123,877.44/x
  3. Step 3: Cross multiply
    292,356.72x = 438,580.80 × 123,877.44
  4. Step 4: Simplify right side
    292,356.72x = 54,330,266,737.15
  5. Step 5: Solve for x
    x = 54,330,266,737.15/292,356.72
  6. Step 6: Final answer
    x = 185,835.53

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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.