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Finding the Fourth Proportional to 292,026.70, 438,040.05 and 177,865.30

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Solution

The fourth proportional to 292,026.70, 438,040.05 and 177,865.30 is: 266,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,026.70 : 438,040.05 = 177,865.30 : x
  2. Step 2: Convert to fraction form
    292,026.70/438,040.05 = 177,865.30/x
  3. Step 3: Cross multiply
    292,026.70x = 438,040.05 × 177,865.30
  4. Step 4: Simplify right side
    292,026.70x = 77,912,124,905.27
  5. Step 5: Solve for x
    x = 77,912,124,905.27/292,026.70
  6. Step 6: Final answer
    x = 266,797.95

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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.