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Finding the Fourth Proportional to 151,995.34, 209,749.90 and 83,081.70

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Solution

The fourth proportional to 151,995.34, 209,749.90 and 83,081.70 is: 114,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,995.34 : 209,749.90 = 83,081.70 : x
  2. Step 2: Convert to fraction form
    151,995.34/209,749.90 = 83,081.70/x
  3. Step 3: Cross multiply
    151,995.34x = 209,749.90 × 83,081.70
  4. Step 4: Simplify right side
    151,995.34x = 17,426,378,266.83
  5. Step 5: Solve for x
    x = 17,426,378,266.83/151,995.34
  6. Step 6: Final answer
    x = 114,650.74

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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.