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Finding the Fourth Proportional to 83,368.77, 125,051.81 and 20,188.46

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Solution

The fourth proportional to 83,368.77, 125,051.81 and 20,188.46 is: 30,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,368.77 : 125,051.81 = 20,188.46 : x
  2. Step 2: Convert to fraction form
    83,368.77/125,051.81 = 20,188.46/x
  3. Step 3: Cross multiply
    83,368.77x = 125,051.81 × 20,188.46
  4. Step 4: Simplify right side
    83,368.77x = 2,524,602,737.91
  5. Step 5: Solve for x
    x = 2,524,602,737.91/83,368.77
  6. Step 6: Final answer
    x = 30,282.36

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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.