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Finding the Fourth Proportional to 156,792.10, 235,188.15 and 155,917.30

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Solution

The fourth proportional to 156,792.10, 235,188.15 and 155,917.30 is: 233,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,792.10 : 235,188.15 = 155,917.30 : x
  2. Step 2: Convert to fraction form
    156,792.10/235,188.15 = 155,917.30/x
  3. Step 3: Cross multiply
    156,792.10x = 235,188.15 × 155,917.30
  4. Step 4: Simplify right side
    156,792.10x = 36,669,901,340.00
  5. Step 5: Solve for x
    x = 36,669,901,340.00/156,792.10
  6. Step 6: Final answer
    x = 233,875.95

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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.