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Finding the Fourth Proportional to 77,935.44, 116,901.96 and 72,954.48

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Solution

The fourth proportional to 77,935.44, 116,901.96 and 72,954.48 is: 109,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,935.44 : 116,901.96 = 72,954.48 : x
  2. Step 2: Convert to fraction form
    77,935.44/116,901.96 = 72,954.48/x
  3. Step 3: Cross multiply
    77,935.44x = 116,901.96 × 72,954.48
  4. Step 4: Simplify right side
    77,935.44x = 8,528,521,702.78
  5. Step 5: Solve for x
    x = 8,528,521,702.78/77,935.44
  6. Step 6: Final answer
    x = 109,430.60

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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.