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Finding the Fourth Proportional to 127,305.70, 190,958.55 and 97,872.10

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Solution

The fourth proportional to 127,305.70, 190,958.55 and 97,872.10 is: 146,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,305.70 : 190,958.55 = 97,872.10 : x
  2. Step 2: Convert to fraction form
    127,305.70/190,958.55 = 97,872.10/x
  3. Step 3: Cross multiply
    127,305.70x = 190,958.55 × 97,872.10
  4. Step 4: Simplify right side
    127,305.70x = 18,689,514,301.46
  5. Step 5: Solve for x
    x = 18,689,514,301.46/127,305.70
  6. Step 6: Final answer
    x = 146,808.15

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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.