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Finding the Fourth Proportional to 210,361,847.82, 315,576,678.48 and 64,795,341.54

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Solution

The fourth proportional to 210,361,847.82, 315,576,678.48 and 64,795,341.54 is: 97,203,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,361,847.82 : 315,576,678.48 = 64,795,341.54 : x
  2. Step 2: Convert to fraction form
    210,361,847.82/315,576,678.48 = 64,795,341.54/x
  3. Step 3: Cross multiply
    210,361,847.82x = 315,576,678.48 × 64,795,341.54
  4. Step 4: Simplify right side
    210,361,847.82x = 20,447,898,664,170,368
  5. Step 5: Solve for x
    x = 20,447,898,664,170,368/210,361,847.82
  6. Step 6: Final answer
    x = 97,203,456.22

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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.