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Finding the Fourth Proportional to 103,952.20, 155,636.70 and 101,036.20

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Solution

The fourth proportional to 103,952.20, 155,636.70 and 101,036.20 is: 151,270.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,952.20 : 155,636.70 = 101,036.20 : x
  2. Step 2: Convert to fraction form
    103,952.20/155,636.70 = 101,036.20/x
  3. Step 3: Cross multiply
    103,952.20x = 155,636.70 × 101,036.20
  4. Step 4: Simplify right side
    103,952.20x = 15,724,940,748.54
  5. Step 5: Solve for x
    x = 15,724,940,748.54/103,952.20
  6. Step 6: Final answer
    x = 151,270.88

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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.