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Finding the Fourth Proportional to 127,968.70, 191,953.05 and 124,512.70

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Solution

The fourth proportional to 127,968.70, 191,953.05 and 124,512.70 is: 186,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.70 : 191,953.05 = 124,512.70 : x
  2. Step 2: Convert to fraction form
    127,968.70/191,953.05 = 124,512.70/x
  3. Step 3: Cross multiply
    127,968.70x = 191,953.05 × 124,512.70
  4. Step 4: Simplify right side
    127,968.70x = 23,900,592,528.74
  5. Step 5: Solve for x
    x = 23,900,592,528.74/127,968.70
  6. Step 6: Final answer
    x = 186,769.05

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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.