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Finding the Fourth Proportional to 242,705.40, 364,058.10 and 217,044.60

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Solution

The fourth proportional to 242,705.40, 364,058.10 and 217,044.60 is: 325,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,705.40 : 364,058.10 = 217,044.60 : x
  2. Step 2: Convert to fraction form
    242,705.40/364,058.10 = 217,044.60/x
  3. Step 3: Cross multiply
    242,705.40x = 364,058.10 × 217,044.60
  4. Step 4: Simplify right side
    242,705.40x = 79,016,844,691.26
  5. Step 5: Solve for x
    x = 79,016,844,691.26/242,705.40
  6. Step 6: Final answer
    x = 325,566.90

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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.