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Finding the Fourth Proportional to 223,714.90, 308,726.00 and 121,740.33

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Solution

The fourth proportional to 223,714.90, 308,726.00 and 121,740.33 is: 168,001.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,714.90 : 308,726.00 = 121,740.33 : x
  2. Step 2: Convert to fraction form
    223,714.90/308,726.00 = 121,740.33/x
  3. Step 3: Cross multiply
    223,714.90x = 308,726.00 × 121,740.33
  4. Step 4: Simplify right side
    223,714.90x = 37,584,406,125.13
  5. Step 5: Solve for x
    x = 37,584,406,125.13/223,714.90
  6. Step 6: Final answer
    x = 168,001.36

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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.