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Finding the Fourth Proportional to 83,556, 125,340.48 and 28,152

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Solution

The fourth proportional to 83,556, 125,340.48 and 28,152 is: 42,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,556 : 125,340.48 = 28,152 : x
  2. Step 2: Convert to fraction form
    83,556/125,340.48 = 28,152/x
  3. Step 3: Cross multiply
    83,556x = 125,340.48 × 28,152
  4. Step 4: Simplify right side
    83,556x = 3,528,585,192.96
  5. Step 5: Solve for x
    x = 3,528,585,192.96/83,556
  6. Step 6: Final answer
    x = 42,230.18

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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.