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Finding the Fourth Proportional to 152,697.41, 210,723.69 and 84,718.85

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Solution

The fourth proportional to 152,697.41, 210,723.69 and 84,718.85 is: 116,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,697.41 : 210,723.69 = 84,718.85 : x
  2. Step 2: Convert to fraction form
    152,697.41/210,723.69 = 84,718.85/x
  3. Step 3: Cross multiply
    152,697.41x = 210,723.69 × 84,718.85
  4. Step 4: Simplify right side
    152,697.41x = 17,852,267,630.94
  5. Step 5: Solve for x
    x = 17,852,267,630.94/152,697.41
  6. Step 6: Final answer
    x = 116,912.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.