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Finding the Fourth Proportional to 217,280,211.10, 325,978,053.45 and 94,405,803.10

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Solution

The fourth proportional to 217,280,211.10, 325,978,053.45 and 94,405,803.10 is: 141,633,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,280,211.10 : 325,978,053.45 = 94,405,803.10 : x
  2. Step 2: Convert to fraction form
    217,280,211.10/325,978,053.45 = 94,405,803.10/x
  3. Step 3: Cross multiply
    217,280,211.10x = 325,978,053.45 × 94,405,803.10
  4. Step 4: Simplify right side
    217,280,211.10x = 30,774,219,928,921,972
  5. Step 5: Solve for x
    x = 30,774,219,928,921,972/217,280,211.10
  6. Step 6: Final answer
    x = 141,633,790.64

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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.