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Finding the Fourth Proportional to 118,856.89, 178,283.97 and 28,900.11

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Solution

The fourth proportional to 118,856.89, 178,283.97 and 28,900.11 is: 43,349.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,856.89 : 178,283.97 = 28,900.11 : x
  2. Step 2: Convert to fraction form
    118,856.89/178,283.97 = 28,900.11/x
  3. Step 3: Cross multiply
    118,856.89x = 178,283.97 × 28,900.11
  4. Step 4: Simplify right side
    118,856.89x = 5,152,426,344.24
  5. Step 5: Solve for x
    x = 5,152,426,344.24/118,856.89
  6. Step 6: Final answer
    x = 43,349.83

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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.