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Finding the Fourth Proportional to 124,819.99, 172,209.51 and 71,066.97

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Solution

The fourth proportional to 124,819.99, 172,209.51 and 71,066.97 is: 98,048.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,819.99 : 172,209.51 = 71,066.97 : x
  2. Step 2: Convert to fraction form
    124,819.99/172,209.51 = 71,066.97/x
  3. Step 3: Cross multiply
    124,819.99x = 172,209.51 × 71,066.97
  4. Step 4: Simplify right side
    124,819.99x = 12,238,408,080.88
  5. Step 5: Solve for x
    x = 12,238,408,080.88/124,819.99
  6. Step 6: Final answer
    x = 98,048.46

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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.