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Finding the Fourth Proportional to 207,534.05, 311,301.08 and 155,046.05

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Solution

The fourth proportional to 207,534.05, 311,301.08 and 155,046.05 is: 232,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,534.05 : 311,301.08 = 155,046.05 : x
  2. Step 2: Convert to fraction form
    207,534.05/311,301.08 = 155,046.05/x
  3. Step 3: Cross multiply
    207,534.05x = 311,301.08 × 155,046.05
  4. Step 4: Simplify right side
    207,534.05x = 48,266,002,039.50
  5. Step 5: Solve for x
    x = 48,266,002,039.50/207,534.05
  6. Step 6: Final answer
    x = 232,569.08

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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.