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Finding the Fourth Proportional to 186,497.39, 279,745.83 and 86,602.95

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Solution

The fourth proportional to 186,497.39, 279,745.83 and 86,602.95 is: 129,904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,497.39 : 279,745.83 = 86,602.95 : x
  2. Step 2: Convert to fraction form
    186,497.39/279,745.83 = 86,602.95/x
  3. Step 3: Cross multiply
    186,497.39x = 279,745.83 × 86,602.95
  4. Step 4: Simplify right side
    186,497.39x = 24,226,814,128.20
  5. Step 5: Solve for x
    x = 24,226,814,128.20/186,497.39
  6. Step 6: Final answer
    x = 129,904.31

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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.