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Finding the Fourth Proportional to 173,960.40, 260,746.20 and 99,116.40

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Solution

The fourth proportional to 173,960.40, 260,746.20 and 99,116.40 is: 148,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,960.40 : 260,746.20 = 99,116.40 : x
  2. Step 2: Convert to fraction form
    173,960.40/260,746.20 = 99,116.40/x
  3. Step 3: Cross multiply
    173,960.40x = 260,746.20 × 99,116.40
  4. Step 4: Simplify right side
    173,960.40x = 25,844,224,657.68
  5. Step 5: Solve for x
    x = 25,844,224,657.68/173,960.40
  6. Step 6: Final answer
    x = 148,563.84

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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.