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Finding the Fourth Proportional to 133,733.60, 200,600.40 and 86,494.40

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Solution

The fourth proportional to 133,733.60, 200,600.40 and 86,494.40 is: 129,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,733.60 : 200,600.40 = 86,494.40 : x
  2. Step 2: Convert to fraction form
    133,733.60/200,600.40 = 86,494.40/x
  3. Step 3: Cross multiply
    133,733.60x = 200,600.40 × 86,494.40
  4. Step 4: Simplify right side
    133,733.60x = 17,350,811,237.76
  5. Step 5: Solve for x
    x = 17,350,811,237.76/133,733.60
  6. Step 6: Final answer
    x = 129,741.60

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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.