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Finding the Fourth Proportional to 93,791.88, 129,432.74 and 51,350.40

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Solution

The fourth proportional to 93,791.88, 129,432.74 and 51,350.40 is: 70,863.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,791.88 : 129,432.74 = 51,350.40 : x
  2. Step 2: Convert to fraction form
    93,791.88/129,432.74 = 51,350.40/x
  3. Step 3: Cross multiply
    93,791.88x = 129,432.74 × 51,350.40
  4. Step 4: Simplify right side
    93,791.88x = 6,646,422,715.34
  5. Step 5: Solve for x
    x = 6,646,422,715.34/93,791.88
  6. Step 6: Final answer
    x = 70,863.52

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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.