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Finding the Fourth Proportional to 165,642.98, 248,390.55 and 60,388.13

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Solution

The fourth proportional to 165,642.98, 248,390.55 and 60,388.13 is: 90,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,642.98 : 248,390.55 = 60,388.13 : x
  2. Step 2: Convert to fraction form
    165,642.98/248,390.55 = 60,388.13/x
  3. Step 3: Cross multiply
    165,642.98x = 248,390.55 × 60,388.13
  4. Step 4: Simplify right side
    165,642.98x = 14,999,841,445.15
  5. Step 5: Solve for x
    x = 14,999,841,445.15/165,642.98
  6. Step 6: Final answer
    x = 90,555.25

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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.