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Finding the Fourth Proportional to 115,262.40, 172,824.48 and 45,058.08

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Solution

The fourth proportional to 115,262.40, 172,824.48 and 45,058.08 is: 67,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,262.40 : 172,824.48 = 45,058.08 : x
  2. Step 2: Convert to fraction form
    115,262.40/172,824.48 = 45,058.08/x
  3. Step 3: Cross multiply
    115,262.40x = 172,824.48 × 45,058.08
  4. Step 4: Simplify right side
    115,262.40x = 7,787,139,245.80
  5. Step 5: Solve for x
    x = 7,787,139,245.80/115,262.40
  6. Step 6: Final answer
    x = 67,560.10

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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.