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Finding the Fourth Proportional to 93,695.76, 129,255.48 and 57,872.88

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Solution

The fourth proportional to 93,695.76, 129,255.48 and 57,872.88 is: 79,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,695.76 : 129,255.48 = 57,872.88 : x
  2. Step 2: Convert to fraction form
    93,695.76/129,255.48 = 57,872.88/x
  3. Step 3: Cross multiply
    93,695.76x = 129,255.48 × 57,872.88
  4. Step 4: Simplify right side
    93,695.76x = 7,480,386,883.38
  5. Step 5: Solve for x
    x = 7,480,386,883.38/93,695.76
  6. Step 6: Final answer
    x = 79,836.98

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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.