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Finding the Fourth Proportional to 235,637.64, 353,522.34 and 77,977.08

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Solution

The fourth proportional to 235,637.64, 353,522.34 and 77,977.08 is: 116,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,637.64 : 353,522.34 = 77,977.08 : x
  2. Step 2: Convert to fraction form
    235,637.64/353,522.34 = 77,977.08/x
  3. Step 3: Cross multiply
    235,637.64x = 353,522.34 × 77,977.08
  4. Step 4: Simplify right side
    235,637.64x = 27,566,639,787.97
  5. Step 5: Solve for x
    x = 27,566,639,787.97/235,637.64
  6. Step 6: Final answer
    x = 116,987.42

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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.