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Finding the Fourth Proportional to 113,982.80, 171,265.80 and 101,152.40

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Solution

The fourth proportional to 113,982.80, 171,265.80 and 101,152.40 is: 151,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,982.80 : 171,265.80 = 101,152.40 : x
  2. Step 2: Convert to fraction form
    113,982.80/171,265.80 = 101,152.40/x
  3. Step 3: Cross multiply
    113,982.80x = 171,265.80 × 101,152.40
  4. Step 4: Simplify right side
    113,982.80x = 17,323,946,707.92
  5. Step 5: Solve for x
    x = 17,323,946,707.92/113,982.80
  6. Step 6: Final answer
    x = 151,987.38

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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.