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Finding the Fourth Proportional to 207,275.76, 310,923.36 and 67,045.32

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Solution

The fourth proportional to 207,275.76, 310,923.36 and 67,045.32 is: 100,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,275.76 : 310,923.36 = 67,045.32 : x
  2. Step 2: Convert to fraction form
    207,275.76/310,923.36 = 67,045.32/x
  3. Step 3: Cross multiply
    207,275.76x = 310,923.36 × 67,045.32
  4. Step 4: Simplify right side
    207,275.76x = 20,845,956,166.68
  5. Step 5: Solve for x
    x = 20,845,956,166.68/207,275.76
  6. Step 6: Final answer
    x = 100,571.12

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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.