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Finding the Fourth Proportional to 368,123.47, 552,169.14 and 115,398.19

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Solution

The fourth proportional to 368,123.47, 552,169.14 and 115,398.19 is: 173,092.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,123.47 : 552,169.14 = 115,398.19 : x
  2. Step 2: Convert to fraction form
    368,123.47/552,169.14 = 115,398.19/x
  3. Step 3: Cross multiply
    368,123.47x = 552,169.14 × 115,398.19
  4. Step 4: Simplify right side
    368,123.47x = 63,719,319,054.26
  5. Step 5: Solve for x
    x = 63,719,319,054.26/368,123.47
  6. Step 6: Final answer
    x = 173,092.25

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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.