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Finding the Fourth Proportional to 156,940.60, 235,410.90 and 144,038.20

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Solution

The fourth proportional to 156,940.60, 235,410.90 and 144,038.20 is: 216,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,940.60 : 235,410.90 = 144,038.20 : x
  2. Step 2: Convert to fraction form
    156,940.60/235,410.90 = 144,038.20/x
  3. Step 3: Cross multiply
    156,940.60x = 235,410.90 × 144,038.20
  4. Step 4: Simplify right side
    156,940.60x = 33,908,162,296.38
  5. Step 5: Solve for x
    x = 33,908,162,296.38/156,940.60
  6. Step 6: Final answer
    x = 216,057.30

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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.