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Finding the Fourth Proportional to 235,669.60, 353,559.74 and 77,898.03

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Solution

The fourth proportional to 235,669.60, 353,559.74 and 77,898.03 is: 116,865.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,669.60 : 353,559.74 = 77,898.03 : x
  2. Step 2: Convert to fraction form
    235,669.60/353,559.74 = 77,898.03/x
  3. Step 3: Cross multiply
    235,669.60x = 353,559.74 × 77,898.03
  4. Step 4: Simplify right side
    235,669.60x = 27,541,606,843.82
  5. Step 5: Solve for x
    x = 27,541,606,843.82/235,669.60
  6. Step 6: Final answer
    x = 116,865.34

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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.