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Finding the Fourth Proportional to 136,304.91, 188,097.98 and 85,345.77

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Solution

The fourth proportional to 136,304.91, 188,097.98 and 85,345.77 is: 117,775.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,304.91 : 188,097.98 = 85,345.77 : x
  2. Step 2: Convert to fraction form
    136,304.91/188,097.98 = 85,345.77/x
  3. Step 3: Cross multiply
    136,304.91x = 188,097.98 × 85,345.77
  4. Step 4: Simplify right side
    136,304.91x = 16,053,366,511.82
  5. Step 5: Solve for x
    x = 16,053,366,511.82/136,304.91
  6. Step 6: Final answer
    x = 117,775.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.