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Finding the Fourth Proportional to 147,616.40, 221,424.60 and 130,703.60

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Solution

The fourth proportional to 147,616.40, 221,424.60 and 130,703.60 is: 196,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,616.40 : 221,424.60 = 130,703.60 : x
  2. Step 2: Convert to fraction form
    147,616.40/221,424.60 = 130,703.60/x
  3. Step 3: Cross multiply
    147,616.40x = 221,424.60 × 130,703.60
  4. Step 4: Simplify right side
    147,616.40x = 28,940,992,348.56
  5. Step 5: Solve for x
    x = 28,940,992,348.56/147,616.40
  6. Step 6: Final answer
    x = 196,055.40

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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.