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Finding the Fourth Proportional to 127,714.10, 191,243.10 and 101,251.40

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Solution

The fourth proportional to 127,714.10, 191,243.10 and 101,251.40 is: 151,617.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,714.10 : 191,243.10 = 101,251.40 : x
  2. Step 2: Convert to fraction form
    127,714.10/191,243.10 = 101,251.40/x
  3. Step 3: Cross multiply
    127,714.10x = 191,243.10 × 101,251.40
  4. Step 4: Simplify right side
    127,714.10x = 19,363,631,615.34
  5. Step 5: Solve for x
    x = 19,363,631,615.34/127,714.10
  6. Step 6: Final answer
    x = 151,617.02

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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.