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Finding the Fourth Proportional to 201,507.48, 278,080.29 and 110,861.48

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Solution

The fourth proportional to 201,507.48, 278,080.29 and 110,861.48 is: 152,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,507.48 : 278,080.29 = 110,861.48 : x
  2. Step 2: Convert to fraction form
    201,507.48/278,080.29 = 110,861.48/x
  3. Step 3: Cross multiply
    201,507.48x = 278,080.29 × 110,861.48
  4. Step 4: Simplify right side
    201,507.48x = 30,828,393,203.43
  5. Step 5: Solve for x
    x = 30,828,393,203.43/201,507.48
  6. Step 6: Final answer
    x = 152,988.83

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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.