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Finding the Fourth Proportional to 134,778.10, 201,746.45 and 99,279.44

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Solution

The fourth proportional to 134,778.10, 201,746.45 and 99,279.44 is: 148,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,778.10 : 201,746.45 = 99,279.44 : x
  2. Step 2: Convert to fraction form
    134,778.10/201,746.45 = 99,279.44/x
  3. Step 3: Cross multiply
    134,778.10x = 201,746.45 × 99,279.44
  4. Step 4: Simplify right side
    134,778.10x = 20,029,274,577.99
  5. Step 5: Solve for x
    x = 20,029,274,577.99/134,778.10
  6. Step 6: Final answer
    x = 148,609.27

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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.