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Finding the Fourth Proportional to 127,489.98, 175,936.34 and 70,901.35

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Solution

The fourth proportional to 127,489.98, 175,936.34 and 70,901.35 is: 97,843.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,489.98 : 175,936.34 = 70,901.35 : x
  2. Step 2: Convert to fraction form
    127,489.98/175,936.34 = 70,901.35/x
  3. Step 3: Cross multiply
    127,489.98x = 175,936.34 × 70,901.35
  4. Step 4: Simplify right side
    127,489.98x = 12,474,124,020.06
  5. Step 5: Solve for x
    x = 12,474,124,020.06/127,489.98
  6. Step 6: Final answer
    x = 97,843.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.