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Finding the Fourth Proportional to 83,009.80, 124,341.90 and 83,009.80

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Solution

The fourth proportional to 83,009.80, 124,341.90 and 83,009.80 is: 124,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,009.80 : 124,341.90 = 83,009.80 : x
  2. Step 2: Convert to fraction form
    83,009.80/124,341.90 = 83,009.80/x
  3. Step 3: Cross multiply
    83,009.80x = 124,341.90 × 83,009.80
  4. Step 4: Simplify right side
    83,009.80x = 10,321,596,250.62
  5. Step 5: Solve for x
    x = 10,321,596,250.62/83,009.80
  6. Step 6: Final answer
    x = 124,341.90

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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.