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Finding the Fourth Proportional to 105,767.40, 158,651.10 and 35,639.40

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Solution

The fourth proportional to 105,767.40, 158,651.10 and 35,639.40 is: 53,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,767.40 : 158,651.10 = 35,639.40 : x
  2. Step 2: Convert to fraction form
    105,767.40/158,651.10 = 35,639.40/x
  3. Step 3: Cross multiply
    105,767.40x = 158,651.10 × 35,639.40
  4. Step 4: Simplify right side
    105,767.40x = 5,654,230,013.34
  5. Step 5: Solve for x
    x = 5,654,230,013.34/105,767.40
  6. Step 6: Final answer
    x = 53,459.10

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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.