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Finding the Fourth Proportional to 144,931.20, 196,279.20 and 144,931.20

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Solution

The fourth proportional to 144,931.20, 196,279.20 and 144,931.20 is: 196,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,931.20 : 196,279.20 = 144,931.20 : x
  2. Step 2: Convert to fraction form
    144,931.20/196,279.20 = 144,931.20/x
  3. Step 3: Cross multiply
    144,931.20x = 196,279.20 × 144,931.20
  4. Step 4: Simplify right side
    144,931.20x = 28,446,979,991.04
  5. Step 5: Solve for x
    x = 28,446,979,991.04/144,931.20
  6. Step 6: Final answer
    x = 196,279.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.