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Finding the Fourth Proportional to 292,275, 438,425.26 and 92,610.10

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Solution

The fourth proportional to 292,275, 438,425.26 and 92,610.10 is: 138,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,275 : 438,425.26 = 92,610.10 : x
  2. Step 2: Convert to fraction form
    292,275/438,425.26 = 92,610.10/x
  3. Step 3: Cross multiply
    292,275x = 438,425.26 × 92,610.10
  4. Step 4: Simplify right side
    292,275x = 40,602,607,487.63
  5. Step 5: Solve for x
    x = 40,602,607,487.63/292,275
  6. Step 6: Final answer
    x = 138,919.19

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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.