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Finding the Fourth Proportional to 242,699.66, 334,927.09 and 135,276.52

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Solution

The fourth proportional to 242,699.66, 334,927.09 and 135,276.52 is: 186,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,699.66 : 334,927.09 = 135,276.52 : x
  2. Step 2: Convert to fraction form
    242,699.66/334,927.09 = 135,276.52/x
  3. Step 3: Cross multiply
    242,699.66x = 334,927.09 × 135,276.52
  4. Step 4: Simplify right side
    242,699.66x = 45,307,769,514.29
  5. Step 5: Solve for x
    x = 45,307,769,514.29/242,699.66
  6. Step 6: Final answer
    x = 186,682.46

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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.