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Finding the Fourth Proportional to 119,249.60, 164,561.10 and 65,534.60

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Solution

The fourth proportional to 119,249.60, 164,561.10 and 65,534.60 is: 90,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,249.60 : 164,561.10 = 65,534.60 : x
  2. Step 2: Convert to fraction form
    119,249.60/164,561.10 = 65,534.60/x
  3. Step 3: Cross multiply
    119,249.60x = 164,561.10 × 65,534.60
  4. Step 4: Simplify right side
    119,249.60x = 10,784,445,864.06
  5. Step 5: Solve for x
    x = 10,784,445,864.06/119,249.60
  6. Step 6: Final answer
    x = 90,435.91

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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.