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Finding the Fourth Proportional to 406,040.32, 609,042.48 and 106,514.08

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Solution

The fourth proportional to 406,040.32, 609,042.48 and 106,514.08 is: 159,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,040.32 : 609,042.48 = 106,514.08 : x
  2. Step 2: Convert to fraction form
    406,040.32/609,042.48 = 106,514.08/x
  3. Step 3: Cross multiply
    406,040.32x = 609,042.48 × 106,514.08
  4. Step 4: Simplify right side
    406,040.32x = 64,871,599,438.12
  5. Step 5: Solve for x
    x = 64,871,599,438.12/406,040.32
  6. Step 6: Final answer
    x = 159,766.40

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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.