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Finding the Fourth Proportional to 202,061.80, 302,699.04 and 122,979.88

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Solution

The fourth proportional to 202,061.80, 302,699.04 and 122,979.88 is: 184,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,061.80 : 302,699.04 = 122,979.88 : x
  2. Step 2: Convert to fraction form
    202,061.80/302,699.04 = 122,979.88/x
  3. Step 3: Cross multiply
    202,061.80x = 302,699.04 × 122,979.88
  4. Step 4: Simplify right side
    202,061.80x = 37,225,891,615.32
  5. Step 5: Solve for x
    x = 37,225,891,615.32/202,061.80
  6. Step 6: Final answer
    x = 184,230.23

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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.