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Finding the Fourth Proportional to 207,266.70, 310,900.05 and 74,210.70

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Solution

The fourth proportional to 207,266.70, 310,900.05 and 74,210.70 is: 111,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,266.70 : 310,900.05 = 74,210.70 : x
  2. Step 2: Convert to fraction form
    207,266.70/310,900.05 = 74,210.70/x
  3. Step 3: Cross multiply
    207,266.70x = 310,900.05 × 74,210.70
  4. Step 4: Simplify right side
    207,266.70x = 23,072,110,340.54
  5. Step 5: Solve for x
    x = 23,072,110,340.54/207,266.70
  6. Step 6: Final answer
    x = 111,316.05

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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.