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Finding the Fourth Proportional to 144,750.60, 217,125.90 and 49,980.60

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Solution

The fourth proportional to 144,750.60, 217,125.90 and 49,980.60 is: 74,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,750.60 : 217,125.90 = 49,980.60 : x
  2. Step 2: Convert to fraction form
    144,750.60/217,125.90 = 49,980.60/x
  3. Step 3: Cross multiply
    144,750.60x = 217,125.90 × 49,980.60
  4. Step 4: Simplify right side
    144,750.60x = 10,852,082,757.54
  5. Step 5: Solve for x
    x = 10,852,082,757.54/144,750.60
  6. Step 6: Final answer
    x = 74,970.90

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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.