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Finding the Fourth Proportional to 127,215.74, 175,559.74 and 70,627.70

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Solution

The fourth proportional to 127,215.74, 175,559.74 and 70,627.70 is: 97,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,215.74 : 175,559.74 = 70,627.70 : x
  2. Step 2: Convert to fraction form
    127,215.74/175,559.74 = 70,627.70/x
  3. Step 3: Cross multiply
    127,215.74x = 175,559.74 × 70,627.70
  4. Step 4: Simplify right side
    127,215.74x = 12,399,380,648.80
  5. Step 5: Solve for x
    x = 12,399,380,648.80/127,215.74
  6. Step 6: Final answer
    x = 97,467.35

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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.