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Finding the Fourth Proportional to 67,894.12, 101,852.46 and 28,454.20

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Solution

The fourth proportional to 67,894.12, 101,852.46 and 28,454.20 is: 42,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,894.12 : 101,852.46 = 28,454.20 : x
  2. Step 2: Convert to fraction form
    67,894.12/101,852.46 = 28,454.20/x
  3. Step 3: Cross multiply
    67,894.12x = 101,852.46 × 28,454.20
  4. Step 4: Simplify right side
    67,894.12x = 2,898,130,267.33
  5. Step 5: Solve for x
    x = 2,898,130,267.33/67,894.12
  6. Step 6: Final answer
    x = 42,686.03

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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.