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Finding the Fourth Proportional to 156,712.48, 235,107.60 and 45,904.48

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Solution

The fourth proportional to 156,712.48, 235,107.60 and 45,904.48 is: 68,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,712.48 : 235,107.60 = 45,904.48 : x
  2. Step 2: Convert to fraction form
    156,712.48/235,107.60 = 45,904.48/x
  3. Step 3: Cross multiply
    156,712.48x = 235,107.60 × 45,904.48
  4. Step 4: Simplify right side
    156,712.48x = 10,792,492,122.05
  5. Step 5: Solve for x
    x = 10,792,492,122.05/156,712.48
  6. Step 6: Final answer
    x = 68,868.11

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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.