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Finding the Fourth Proportional to 147,370.80, 221,072.40 and 53,896.80

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Solution

The fourth proportional to 147,370.80, 221,072.40 and 53,896.80 is: 80,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,370.80 : 221,072.40 = 53,896.80 : x
  2. Step 2: Convert to fraction form
    147,370.80/221,072.40 = 53,896.80/x
  3. Step 3: Cross multiply
    147,370.80x = 221,072.40 × 53,896.80
  4. Step 4: Simplify right side
    147,370.80x = 11,915,094,928.32
  5. Step 5: Solve for x
    x = 11,915,094,928.32/147,370.80
  6. Step 6: Final answer
    x = 80,851.12

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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.