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Finding the Fourth Proportional to 223,276.69, 308,127.51 and 121,301.13

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Solution

The fourth proportional to 223,276.69, 308,127.51 and 121,301.13 is: 167,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,276.69 : 308,127.51 = 121,301.13 : x
  2. Step 2: Convert to fraction form
    223,276.69/308,127.51 = 121,301.13/x
  3. Step 3: Cross multiply
    223,276.69x = 308,127.51 × 121,301.13
  4. Step 4: Simplify right side
    223,276.69x = 37,376,215,147.09
  5. Step 5: Solve for x
    x = 37,376,215,147.09/223,276.69
  6. Step 6: Final answer
    x = 167,398.64

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1.5x scale

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.