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Finding the Fourth Proportional to 210,475.56, 315,639.08 and 60,675.48

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Solution

The fourth proportional to 210,475.56, 315,639.08 and 60,675.48 is: 90,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,475.56 : 315,639.08 = 60,675.48 : x
  2. Step 2: Convert to fraction form
    210,475.56/315,639.08 = 60,675.48/x
  3. Step 3: Cross multiply
    210,475.56x = 315,639.08 × 60,675.48
  4. Step 4: Simplify right side
    210,475.56x = 19,151,552,609.91
  5. Step 5: Solve for x
    x = 19,151,552,609.91/210,475.56
  6. Step 6: Final answer
    x = 90,991.81

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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.