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Finding the Fourth Proportional to 92,775.49, 128,042.24 and 51,955.16

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Solution

The fourth proportional to 92,775.49, 128,042.24 and 51,955.16 is: 71,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,775.49 : 128,042.24 = 51,955.16 : x
  2. Step 2: Convert to fraction form
    92,775.49/128,042.24 = 51,955.16/x
  3. Step 3: Cross multiply
    92,775.49x = 128,042.24 × 51,955.16
  4. Step 4: Simplify right side
    92,775.49x = 6,652,454,165.97
  5. Step 5: Solve for x
    x = 6,652,454,165.97/92,775.49
  6. Step 6: Final answer
    x = 71,704.87

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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.