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Finding the Fourth Proportional to 194,220.70, 291,340.65 and 100,908.70

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Solution

The fourth proportional to 194,220.70, 291,340.65 and 100,908.70 is: 151,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,220.70 : 291,340.65 = 100,908.70 : x
  2. Step 2: Convert to fraction form
    194,220.70/291,340.65 = 100,908.70/x
  3. Step 3: Cross multiply
    194,220.70x = 291,340.65 × 100,908.70
  4. Step 4: Simplify right side
    194,220.70x = 29,398,806,248.66
  5. Step 5: Solve for x
    x = 29,398,806,248.66/194,220.70
  6. Step 6: Final answer
    x = 151,368.04

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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.