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Finding the Fourth Proportional to 173,875.10, 260,824.80 and 68,680.40

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Solution

The fourth proportional to 173,875.10, 260,824.80 and 68,680.40 is: 103,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,875.10 : 260,824.80 = 68,680.40 : x
  2. Step 2: Convert to fraction form
    173,875.10/260,824.80 = 68,680.40/x
  3. Step 3: Cross multiply
    173,875.10x = 260,824.80 × 68,680.40
  4. Step 4: Simplify right side
    173,875.10x = 17,913,551,593.92
  5. Step 5: Solve for x
    x = 17,913,551,593.92/173,875.10
  6. Step 6: Final answer
    x = 103,025.40

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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.