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Finding the Fourth Proportional to 242,955.90, 364,616.10 and 124,566.30

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Solution

The fourth proportional to 242,955.90, 364,616.10 and 124,566.30 is: 186,942.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,955.90 : 364,616.10 = 124,566.30 : x
  2. Step 2: Convert to fraction form
    242,955.90/364,616.10 = 124,566.30/x
  3. Step 3: Cross multiply
    242,955.90x = 364,616.10 × 124,566.30
  4. Step 4: Simplify right side
    242,955.90x = 45,418,878,497.43
  5. Step 5: Solve for x
    x = 45,418,878,497.43/242,955.90
  6. Step 6: Final answer
    x = 186,942.89

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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.