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Finding the Fourth Proportional to 292,223.04, 438,393.60 and 123,743.04

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Solution

The fourth proportional to 292,223.04, 438,393.60 and 123,743.04 is: 185,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,223.04 : 438,393.60 = 123,743.04 : x
  2. Step 2: Convert to fraction form
    292,223.04/438,393.60 = 123,743.04/x
  3. Step 3: Cross multiply
    292,223.04x = 438,393.60 × 123,743.04
  4. Step 4: Simplify right side
    292,223.04x = 54,248,156,780.54
  5. Step 5: Solve for x
    x = 54,248,156,780.54/292,223.04
  6. Step 6: Final answer
    x = 185,639.56

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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.