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Finding the Fourth Proportional to 117,079.80, 175,101.30 and 98,417.40

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Solution

The fourth proportional to 117,079.80, 175,101.30 and 98,417.40 is: 147,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,079.80 : 175,101.30 = 98,417.40 : x
  2. Step 2: Convert to fraction form
    117,079.80/175,101.30 = 98,417.40/x
  3. Step 3: Cross multiply
    117,079.80x = 175,101.30 × 98,417.40
  4. Step 4: Simplify right side
    117,079.80x = 17,233,014,682.62
  5. Step 5: Solve for x
    x = 17,233,014,682.62/117,079.80
  6. Step 6: Final answer
    x = 147,190.33

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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.