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Finding the Fourth Proportional to 135,248.80, 202,873.20 and 65,111.20

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Solution

The fourth proportional to 135,248.80, 202,873.20 and 65,111.20 is: 97,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,248.80 : 202,873.20 = 65,111.20 : x
  2. Step 2: Convert to fraction form
    135,248.80/202,873.20 = 65,111.20/x
  3. Step 3: Cross multiply
    135,248.80x = 202,873.20 × 65,111.20
  4. Step 4: Simplify right side
    135,248.80x = 13,209,317,499.84
  5. Step 5: Solve for x
    x = 13,209,317,499.84/135,248.80
  6. Step 6: Final answer
    x = 97,666.80

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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.