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Finding the Fourth Proportional to 108,009.60, 149,060.80 and 60,272.24

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Solution

The fourth proportional to 108,009.60, 149,060.80 and 60,272.24 is: 83,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,009.60 : 149,060.80 = 60,272.24 : x
  2. Step 2: Convert to fraction form
    108,009.60/149,060.80 = 60,272.24/x
  3. Step 3: Cross multiply
    108,009.60x = 149,060.80 × 60,272.24
  4. Step 4: Simplify right side
    108,009.60x = 8,984,228,312.19
  5. Step 5: Solve for x
    x = 8,984,228,312.19/108,009.60
  6. Step 6: Final answer
    x = 83,179.91

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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.