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Finding the Fourth Proportional to 133,699.60, 200,500.80 and 67,117.60

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Solution

The fourth proportional to 133,699.60, 200,500.80 and 67,117.60 is: 100,652.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,699.60 : 200,500.80 = 67,117.60 : x
  2. Step 2: Convert to fraction form
    133,699.60/200,500.80 = 67,117.60/x
  3. Step 3: Cross multiply
    133,699.60x = 200,500.80 × 67,117.60
  4. Step 4: Simplify right side
    133,699.60x = 13,457,132,494.08
  5. Step 5: Solve for x
    x = 13,457,132,494.08/133,699.60
  6. Step 6: Final answer
    x = 100,652.00

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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.