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Finding the Fourth Proportional to 303,117.72, 418,326.30 and 167,164.08

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Solution

The fourth proportional to 303,117.72, 418,326.30 and 167,164.08 is: 230,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,117.72 : 418,326.30 = 167,164.08 : x
  2. Step 2: Convert to fraction form
    303,117.72/418,326.30 = 167,164.08/x
  3. Step 3: Cross multiply
    303,117.72x = 418,326.30 × 167,164.08
  4. Step 4: Simplify right side
    303,117.72x = 69,929,131,079.30
  5. Step 5: Solve for x
    x = 69,929,131,079.30/303,117.72
  6. Step 6: Final answer
    x = 230,699.58

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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.