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Finding the Fourth Proportional to 92,541, 127,649.16 and 68,317.20

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Solution

The fourth proportional to 92,541, 127,649.16 and 68,317.20 is: 94,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,541 : 127,649.16 = 68,317.20 : x
  2. Step 2: Convert to fraction form
    92,541/127,649.16 = 68,317.20/x
  3. Step 3: Cross multiply
    92,541x = 127,649.16 × 68,317.20
  4. Step 4: Simplify right side
    92,541x = 8,720,633,193.55
  5. Step 5: Solve for x
    x = 8,720,633,193.55/92,541
  6. Step 6: Final answer
    x = 94,235.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.