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Finding the Fourth Proportional to 98,616.26, 148,055.62 and 51,901.94

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Solution

The fourth proportional to 98,616.26, 148,055.62 and 51,901.94 is: 77,921.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,616.26 : 148,055.62 = 51,901.94 : x
  2. Step 2: Convert to fraction form
    98,616.26/148,055.62 = 51,901.94/x
  3. Step 3: Cross multiply
    98,616.26x = 148,055.62 × 51,901.94
  4. Step 4: Simplify right side
    98,616.26x = 7,684,373,905.90
  5. Step 5: Solve for x
    x = 7,684,373,905.90/98,616.26
  6. Step 6: Final answer
    x = 77,921.98

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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.