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Finding the Fourth Proportional to 292,048.60, 438,126.98 and 92,419.24

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Solution

The fourth proportional to 292,048.60, 438,126.98 and 92,419.24 is: 138,645.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,048.60 : 438,126.98 = 92,419.24 : x
  2. Step 2: Convert to fraction form
    292,048.60/438,126.98 = 92,419.24/x
  3. Step 3: Cross multiply
    292,048.60x = 438,126.98 × 92,419.24
  4. Step 4: Simplify right side
    292,048.60x = 40,491,362,515.10
  5. Step 5: Solve for x
    x = 40,491,362,515.10/292,048.60
  6. Step 6: Final answer
    x = 138,645.97

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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.