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Finding the Fourth Proportional to 101,959.70, 152,939.55 and 70,466.90

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Solution

The fourth proportional to 101,959.70, 152,939.55 and 70,466.90 is: 105,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,959.70 : 152,939.55 = 70,466.90 : x
  2. Step 2: Convert to fraction form
    101,959.70/152,939.55 = 70,466.90/x
  3. Step 3: Cross multiply
    101,959.70x = 152,939.55 × 70,466.90
  4. Step 4: Simplify right side
    101,959.70x = 10,777,175,975.90
  5. Step 5: Solve for x
    x = 10,777,175,975.90/101,959.70
  6. Step 6: Final answer
    x = 105,700.35

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1.5x scale

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.