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Finding the Fourth Proportional to 126,802.82, 190,133.10 and 86,866.91

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Solution

The fourth proportional to 126,802.82, 190,133.10 and 86,866.91 is: 130,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,802.82 : 190,133.10 = 86,866.91 : x
  2. Step 2: Convert to fraction form
    126,802.82/190,133.10 = 86,866.91/x
  3. Step 3: Cross multiply
    126,802.82x = 190,133.10 × 86,866.91
  4. Step 4: Simplify right side
    126,802.82x = 16,516,274,885.72
  5. Step 5: Solve for x
    x = 16,516,274,885.72/126,802.82
  6. Step 6: Final answer
    x = 130,251.64

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1.5x scale

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.