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Finding the Fourth Proportional to 151,505.60, 209,093.28 and 91,095.92

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Solution

The fourth proportional to 151,505.60, 209,093.28 and 91,095.92 is: 125,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,505.60 : 209,093.28 = 91,095.92 : x
  2. Step 2: Convert to fraction form
    151,505.60/209,093.28 = 91,095.92/x
  3. Step 3: Cross multiply
    151,505.60x = 209,093.28 × 91,095.92
  4. Step 4: Simplify right side
    151,505.60x = 19,047,544,707.42
  5. Step 5: Solve for x
    x = 19,047,544,707.42/151,505.60
  6. Step 6: Final answer
    x = 125,721.72

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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.