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Finding the Fourth Proportional to 235,916.80, 353,875.20 and 156,601.60

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Solution

The fourth proportional to 235,916.80, 353,875.20 and 156,601.60 is: 234,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,916.80 : 353,875.20 = 156,601.60 : x
  2. Step 2: Convert to fraction form
    235,916.80/353,875.20 = 156,601.60/x
  3. Step 3: Cross multiply
    235,916.80x = 353,875.20 × 156,601.60
  4. Step 4: Simplify right side
    235,916.80x = 55,417,422,520.32
  5. Step 5: Solve for x
    x = 55,417,422,520.32/235,916.80
  6. Step 6: Final answer
    x = 234,902.40

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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.