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Finding the Fourth Proportional to 297,092.39, 445,669.83 and 86,730.93

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Solution

The fourth proportional to 297,092.39, 445,669.83 and 86,730.93 is: 130,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,092.39 : 445,669.83 = 86,730.93 : x
  2. Step 2: Convert to fraction form
    297,092.39/445,669.83 = 86,730.93/x
  3. Step 3: Cross multiply
    297,092.39x = 445,669.83 × 86,730.93
  4. Step 4: Simplify right side
    297,092.39x = 38,653,358,828.84
  5. Step 5: Solve for x
    x = 38,653,358,828.84/297,092.39
  6. Step 6: Final answer
    x = 130,105.52

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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.