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Finding the Fourth Proportional to 108,066.80, 162,029.80 and 97,007.60

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Solution

The fourth proportional to 108,066.80, 162,029.80 and 97,007.60 is: 145,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,066.80 : 162,029.80 = 97,007.60 : x
  2. Step 2: Convert to fraction form
    108,066.80/162,029.80 = 97,007.60/x
  3. Step 3: Cross multiply
    108,066.80x = 162,029.80 × 97,007.60
  4. Step 4: Simplify right side
    108,066.80x = 15,718,122,026.48
  5. Step 5: Solve for x
    x = 15,718,122,026.48/108,066.80
  6. Step 6: Final answer
    x = 145,448.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.