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Finding the Fourth Proportional to 156,628.35, 234,750.15 and 61,763.31

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Solution

The fourth proportional to 156,628.35, 234,750.15 and 61,763.31 is: 92,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.35 : 234,750.15 = 61,763.31 : x
  2. Step 2: Convert to fraction form
    156,628.35/234,750.15 = 61,763.31/x
  3. Step 3: Cross multiply
    156,628.35x = 234,750.15 × 61,763.31
  4. Step 4: Simplify right side
    156,628.35x = 14,498,946,287.00
  5. Step 5: Solve for x
    x = 14,498,946,287.00/156,628.35
  6. Step 6: Final answer
    x = 92,569.11

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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.