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Finding the Fourth Proportional to 99,695.57, 137,576.08 and 54,983.57

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Solution

The fourth proportional to 99,695.57, 137,576.08 and 54,983.57 is: 75,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.57 : 137,576.08 = 54,983.57 : x
  2. Step 2: Convert to fraction form
    99,695.57/137,576.08 = 54,983.57/x
  3. Step 3: Cross multiply
    99,695.57x = 137,576.08 × 54,983.57
  4. Step 4: Simplify right side
    99,695.57x = 7,564,424,025.01
  5. Step 5: Solve for x
    x = 7,564,424,025.01/99,695.57
  6. Step 6: Final answer
    x = 75,875.23

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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.