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Finding the Fourth Proportional to 92,886.96, 128,184.03 and 50,445.48

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Solution

The fourth proportional to 92,886.96, 128,184.03 and 50,445.48 is: 69,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,886.96 : 128,184.03 = 50,445.48 : x
  2. Step 2: Convert to fraction form
    92,886.96/128,184.03 = 50,445.48/x
  3. Step 3: Cross multiply
    92,886.96x = 128,184.03 × 50,445.48
  4. Step 4: Simplify right side
    92,886.96x = 6,466,304,921.68
  5. Step 5: Solve for x
    x = 6,466,304,921.68/92,886.96
  6. Step 6: Final answer
    x = 69,614.78

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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.