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Finding the Fourth Proportional to 151,594.63, 209,282.61 and 91,178.76

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Solution

The fourth proportional to 151,594.63, 209,282.61 and 91,178.76 is: 125,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,594.63 : 209,282.61 = 91,178.76 : x
  2. Step 2: Convert to fraction form
    151,594.63/209,282.61 = 91,178.76/x
  3. Step 3: Cross multiply
    151,594.63x = 209,282.61 × 91,178.76
  4. Step 4: Simplify right side
    151,594.63x = 19,082,128,869.36
  5. Step 5: Solve for x
    x = 19,082,128,869.36/151,594.63
  6. Step 6: Final answer
    x = 125,876.02

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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.