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Finding the Fourth Proportional to 407,030.78, 610,575.32 and 107,508.37

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Solution

The fourth proportional to 407,030.78, 610,575.32 and 107,508.37 is: 161,270.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,030.78 : 610,575.32 = 107,508.37 : x
  2. Step 2: Convert to fraction form
    407,030.78/610,575.32 = 107,508.37/x
  3. Step 3: Cross multiply
    407,030.78x = 610,575.32 × 107,508.37
  4. Step 4: Simplify right side
    407,030.78x = 65,641,955,351.45
  5. Step 5: Solve for x
    x = 65,641,955,351.45/407,030.78
  6. Step 6: Final answer
    x = 161,270.25

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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.