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Finding the Fourth Proportional to 109,210.70, 163,816.05 and 35,338.70

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Solution

The fourth proportional to 109,210.70, 163,816.05 and 35,338.70 is: 53,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,210.70 : 163,816.05 = 35,338.70 : x
  2. Step 2: Convert to fraction form
    109,210.70/163,816.05 = 35,338.70/x
  3. Step 3: Cross multiply
    109,210.70x = 163,816.05 × 35,338.70
  4. Step 4: Simplify right side
    109,210.70x = 5,789,046,246.14
  5. Step 5: Solve for x
    x = 5,789,046,246.14/109,210.70
  6. Step 6: Final answer
    x = 53,008.05

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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.