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Finding the Fourth Proportional to 108,812.72, 150,185.08 and 83,038.24

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Solution

The fourth proportional to 108,812.72, 150,185.08 and 83,038.24 is: 114,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,812.72 : 150,185.08 = 83,038.24 : x
  2. Step 2: Convert to fraction form
    108,812.72/150,185.08 = 83,038.24/x
  3. Step 3: Cross multiply
    108,812.72x = 150,185.08 × 83,038.24
  4. Step 4: Simplify right side
    108,812.72x = 12,471,104,717.46
  5. Step 5: Solve for x
    x = 12,471,104,717.46/108,812.72
  6. Step 6: Final answer
    x = 114,610.72

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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.