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Finding the Fourth Proportional to 108,762.12, 150,121.08 and 71,035.56

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Solution

The fourth proportional to 108,762.12, 150,121.08 and 71,035.56 is: 98,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,762.12 : 150,121.08 = 71,035.56 : x
  2. Step 2: Convert to fraction form
    108,762.12/150,121.08 = 71,035.56/x
  3. Step 3: Cross multiply
    108,762.12x = 150,121.08 × 71,035.56
  4. Step 4: Simplify right side
    108,762.12x = 10,663,934,985.60
  5. Step 5: Solve for x
    x = 10,663,934,985.60/108,762.12
  6. Step 6: Final answer
    x = 98,048.24

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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.