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Finding the Fourth Proportional to 210,318.88, 315,523.68 and 60,558.16

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Solution

The fourth proportional to 210,318.88, 315,523.68 and 60,558.16 is: 90,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,318.88 : 315,523.68 = 60,558.16 : x
  2. Step 2: Convert to fraction form
    210,318.88/315,523.68 = 60,558.16/x
  3. Step 3: Cross multiply
    210,318.88x = 315,523.68 × 60,558.16
  4. Step 4: Simplify right side
    210,318.88x = 19,107,533,497.23
  5. Step 5: Solve for x
    x = 19,107,533,497.23/210,318.88
  6. Step 6: Final answer
    x = 90,850.30

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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.