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Finding the Fourth Proportional to 131,460.70, 197,191.05 and 127,572.70

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Solution

The fourth proportional to 131,460.70, 197,191.05 and 127,572.70 is: 191,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,460.70 : 197,191.05 = 127,572.70 : x
  2. Step 2: Convert to fraction form
    131,460.70/197,191.05 = 127,572.70/x
  3. Step 3: Cross multiply
    131,460.70x = 197,191.05 × 127,572.70
  4. Step 4: Simplify right side
    131,460.70x = 25,156,194,664.34
  5. Step 5: Solve for x
    x = 25,156,194,664.34/131,460.70
  6. Step 6: Final answer
    x = 191,359.05

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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.