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Finding the Fourth Proportional to 229,141.33, 343,629.98 and 79,341.40

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Solution

The fourth proportional to 229,141.33, 343,629.98 and 79,341.40 is: 118,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,141.33 : 343,629.98 = 79,341.40 : x
  2. Step 2: Convert to fraction form
    229,141.33/343,629.98 = 79,341.40/x
  3. Step 3: Cross multiply
    229,141.33x = 343,629.98 × 79,341.40
  4. Step 4: Simplify right side
    229,141.33x = 27,264,083,695.17
  5. Step 5: Solve for x
    x = 27,264,083,695.17/229,141.33
  6. Step 6: Final answer
    x = 118,983.70

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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.