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Finding the Fourth Proportional to 235,477.35, 353,216.03 and 77,685.30

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Solution

The fourth proportional to 235,477.35, 353,216.03 and 77,685.30 is: 116,527.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,477.35 : 353,216.03 = 77,685.30 : x
  2. Step 2: Convert to fraction form
    235,477.35/353,216.03 = 77,685.30/x
  3. Step 3: Cross multiply
    235,477.35x = 353,216.03 × 77,685.30
  4. Step 4: Simplify right side
    235,477.35x = 27,439,692,866.93
  5. Step 5: Solve for x
    x = 27,439,692,866.93/235,477.35
  6. Step 6: Final answer
    x = 116,527.95

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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.