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Finding the Fourth Proportional to 186,713.60, 280,070.56 and 80,028.32

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Solution

The fourth proportional to 186,713.60, 280,070.56 and 80,028.32 is: 120,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,713.60 : 280,070.56 = 80,028.32 : x
  2. Step 2: Convert to fraction form
    186,713.60/280,070.56 = 80,028.32/x
  3. Step 3: Cross multiply
    186,713.60x = 280,070.56 × 80,028.32
  4. Step 4: Simplify right side
    186,713.60x = 22,413,574,797.84
  5. Step 5: Solve for x
    x = 22,413,574,797.84/186,713.60
  6. Step 6: Final answer
    x = 120,042.54

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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.