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Finding the Fourth Proportional to 207,714.69, 311,572.13 and 65,574.39

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Solution

The fourth proportional to 207,714.69, 311,572.13 and 65,574.39 is: 98,361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,714.69 : 311,572.13 = 65,574.39 : x
  2. Step 2: Convert to fraction form
    207,714.69/311,572.13 = 65,574.39/x
  3. Step 3: Cross multiply
    207,714.69x = 311,572.13 × 65,574.39
  4. Step 4: Simplify right side
    207,714.69x = 20,431,151,038.45
  5. Step 5: Solve for x
    x = 20,431,151,038.45/207,714.69
  6. Step 6: Final answer
    x = 98,361.61

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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.