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Finding the Fourth Proportional to 229,891.55, 344,886.95 and 69,979.98

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Solution

The fourth proportional to 229,891.55, 344,886.95 and 69,979.98 is: 104,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,891.55 : 344,886.95 = 69,979.98 : x
  2. Step 2: Convert to fraction form
    229,891.55/344,886.95 = 69,979.98/x
  3. Step 3: Cross multiply
    229,891.55x = 344,886.95 × 69,979.98
  4. Step 4: Simplify right side
    229,891.55x = 24,135,181,513.36
  5. Step 5: Solve for x
    x = 24,135,181,513.36/229,891.55
  6. Step 6: Final answer
    x = 104,985.08

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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.