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Finding the Fourth Proportional to 92,778.42, 127,955.25 and 64,551.54

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Solution

The fourth proportional to 92,778.42, 127,955.25 and 64,551.54 is: 89,026.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,778.42 : 127,955.25 = 64,551.54 : x
  2. Step 2: Convert to fraction form
    92,778.42/127,955.25 = 64,551.54/x
  3. Step 3: Cross multiply
    92,778.42x = 127,955.25 × 64,551.54
  4. Step 4: Simplify right side
    92,778.42x = 8,259,708,438.59
  5. Step 5: Solve for x
    x = 8,259,708,438.59/92,778.42
  6. Step 6: Final answer
    x = 89,026.18

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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.