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Finding the Fourth Proportional to 243,095.71, 364,644.43 and 74,616.05

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Solution

The fourth proportional to 243,095.71, 364,644.43 and 74,616.05 is: 111,924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,095.71 : 364,644.43 = 74,616.05 : x
  2. Step 2: Convert to fraction form
    243,095.71/364,644.43 = 74,616.05/x
  3. Step 3: Cross multiply
    243,095.71x = 364,644.43 × 74,616.05
  4. Step 4: Simplify right side
    243,095.71x = 27,208,325,807.90
  5. Step 5: Solve for x
    x = 27,208,325,807.90/243,095.71
  6. Step 6: Final answer
    x = 111,924.34

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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.