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Finding the Fourth Proportional to 256,047.30, 383,615.19 and 156,155.94

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Solution

The fourth proportional to 256,047.30, 383,615.19 and 156,155.94 is: 233,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,047.30 : 383,615.19 = 156,155.94 : x
  2. Step 2: Convert to fraction form
    256,047.30/383,615.19 = 156,155.94/x
  3. Step 3: Cross multiply
    256,047.30x = 383,615.19 × 156,155.94
  4. Step 4: Simplify right side
    256,047.30x = 59,903,790,592.73
  5. Step 5: Solve for x
    x = 59,903,790,592.73/256,047.30
  6. Step 6: Final answer
    x = 233,955.95

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1.5x scale

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.