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Finding the Fourth Proportional to 210,616.02, 315,940.35 and 70,375.14

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Solution

The fourth proportional to 210,616.02, 315,940.35 and 70,375.14 is: 105,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,616.02 : 315,940.35 = 70,375.14 : x
  2. Step 2: Convert to fraction form
    210,616.02/315,940.35 = 70,375.14/x
  3. Step 3: Cross multiply
    210,616.02x = 315,940.35 × 70,375.14
  4. Step 4: Simplify right side
    210,616.02x = 22,234,346,362.90
  5. Step 5: Solve for x
    x = 22,234,346,362.90/210,616.02
  6. Step 6: Final answer
    x = 105,568.16

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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.