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Finding the Fourth Proportional to 207,116.10, 310,674.15 and 74,000.70

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Solution

The fourth proportional to 207,116.10, 310,674.15 and 74,000.70 is: 111,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,116.10 : 310,674.15 = 74,000.70 : x
  2. Step 2: Convert to fraction form
    207,116.10/310,674.15 = 74,000.70/x
  3. Step 3: Cross multiply
    207,116.10x = 310,674.15 × 74,000.70
  4. Step 4: Simplify right side
    207,116.10x = 22,990,104,571.91
  5. Step 5: Solve for x
    x = 22,990,104,571.91/207,116.10
  6. Step 6: Final answer
    x = 111,001.05

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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.