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Finding the Fourth Proportional to 270,920.86, 374,051.62 and 168,987.22

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Solution

The fourth proportional to 270,920.86, 374,051.62 and 168,987.22 is: 233,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,920.86 : 374,051.62 = 168,987.22 : x
  2. Step 2: Convert to fraction form
    270,920.86/374,051.62 = 168,987.22/x
  3. Step 3: Cross multiply
    270,920.86x = 374,051.62 × 168,987.22
  4. Step 4: Simplify right side
    270,920.86x = 63,209,943,400.30
  5. Step 5: Solve for x
    x = 63,209,943,400.30/270,920.86
  6. Step 6: Final answer
    x = 233,315.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.