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Finding the Fourth Proportional to 123,297.60, 184,819.68 and 53,117.76

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Solution

The fourth proportional to 123,297.60, 184,819.68 and 53,117.76 is: 79,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,297.60 : 184,819.68 = 53,117.76 : x
  2. Step 2: Convert to fraction form
    123,297.60/184,819.68 = 53,117.76/x
  3. Step 3: Cross multiply
    123,297.60x = 184,819.68 × 53,117.76
  4. Step 4: Simplify right side
    123,297.60x = 9,817,207,405.52
  5. Step 5: Solve for x
    x = 9,817,207,405.52/123,297.60
  6. Step 6: Final answer
    x = 79,622.05

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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.