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Finding the Fourth Proportional to 123,675.59, 185,540.61 and 70,392.64

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Solution

The fourth proportional to 123,675.59, 185,540.61 and 70,392.64 is: 105,604.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,675.59 : 185,540.61 = 70,392.64 : x
  2. Step 2: Convert to fraction form
    123,675.59/185,540.61 = 70,392.64/x
  3. Step 3: Cross multiply
    123,675.59x = 185,540.61 × 70,392.64
  4. Step 4: Simplify right side
    123,675.59x = 13,060,693,117.16
  5. Step 5: Solve for x
    x = 13,060,693,117.16/123,675.59
  6. Step 6: Final answer
    x = 105,604.45

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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.