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Finding the Fourth Proportional to 210,448.74, 315,719.74 and 60,677.34

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Solution

The fourth proportional to 210,448.74, 315,719.74 and 60,677.34 is: 91,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,448.74 : 315,719.74 = 60,677.34 : x
  2. Step 2: Convert to fraction form
    210,448.74/315,719.74 = 60,677.34/x
  3. Step 3: Cross multiply
    210,448.74x = 315,719.74 × 60,677.34
  4. Step 4: Simplify right side
    210,448.74x = 19,157,034,008.69
  5. Step 5: Solve for x
    x = 19,157,034,008.69/210,448.74
  6. Step 6: Final answer
    x = 91,029.45

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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.