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Finding the Fourth Proportional to 108,012.61, 149,064.60 and 60,267.03

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Solution

The fourth proportional to 108,012.61, 149,064.60 and 60,267.03 is: 83,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,012.61 : 149,064.60 = 60,267.03 : x
  2. Step 2: Convert to fraction form
    108,012.61/149,064.60 = 60,267.03/x
  3. Step 3: Cross multiply
    108,012.61x = 149,064.60 × 60,267.03
  4. Step 4: Simplify right side
    108,012.61x = 8,983,680,720.14
  5. Step 5: Solve for x
    x = 8,983,680,720.14/108,012.61
  6. Step 6: Final answer
    x = 83,172.52

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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.