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Finding the Fourth Proportional to 146,518.80, 219,616.20 and 57,742.80

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Solution

The fourth proportional to 146,518.80, 219,616.20 and 57,742.80 is: 86,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,518.80 : 219,616.20 = 57,742.80 : x
  2. Step 2: Convert to fraction form
    146,518.80/219,616.20 = 57,742.80/x
  3. Step 3: Cross multiply
    146,518.80x = 219,616.20 × 57,742.80
  4. Step 4: Simplify right side
    146,518.80x = 12,681,254,313.36
  5. Step 5: Solve for x
    x = 12,681,254,313.36/146,518.80
  6. Step 6: Final answer
    x = 86,550.36

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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.