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Finding the Fourth Proportional to 170,286.98, 255,461.45 and 70,392.92

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Solution

The fourth proportional to 170,286.98, 255,461.45 and 70,392.92 is: 105,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,286.98 : 255,461.45 = 70,392.92 : x
  2. Step 2: Convert to fraction form
    170,286.98/255,461.45 = 70,392.92/x
  3. Step 3: Cross multiply
    170,286.98x = 255,461.45 × 70,392.92
  4. Step 4: Simplify right side
    170,286.98x = 17,982,675,783.66
  5. Step 5: Solve for x
    x = 17,982,675,783.66/170,286.98
  6. Step 6: Final answer
    x = 105,602.18

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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.