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Finding the Fourth Proportional to 92,936.61, 128,248.34 and 52,649.55

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Solution

The fourth proportional to 92,936.61, 128,248.34 and 52,649.55 is: 72,654.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,936.61 : 128,248.34 = 52,649.55 : x
  2. Step 2: Convert to fraction form
    92,936.61/128,248.34 = 52,649.55/x
  3. Step 3: Cross multiply
    92,936.61x = 128,248.34 × 52,649.55
  4. Step 4: Simplify right side
    92,936.61x = 6,752,217,389.25
  5. Step 5: Solve for x
    x = 6,752,217,389.25/92,936.61
  6. Step 6: Final answer
    x = 72,654.01

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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.