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Finding the Fourth Proportional to 368,054.38, 552,081.70 and 115,354.48

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Solution

The fourth proportional to 368,054.38, 552,081.70 and 115,354.48 is: 173,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,054.38 : 552,081.70 = 115,354.48 : x
  2. Step 2: Convert to fraction form
    368,054.38/552,081.70 = 115,354.48/x
  3. Step 3: Cross multiply
    368,054.38x = 552,081.70 × 115,354.48
  4. Step 4: Simplify right side
    368,054.38x = 63,685,097,421.02
  5. Step 5: Solve for x
    x = 63,685,097,421.02/368,054.38
  6. Step 6: Final answer
    x = 173,031.76

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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.