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Finding the Fourth Proportional to 147,906.20, 221,859.30 and 64,962.20

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Solution

The fourth proportional to 147,906.20, 221,859.30 and 64,962.20 is: 97,443.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,906.20 : 221,859.30 = 64,962.20 : x
  2. Step 2: Convert to fraction form
    147,906.20/221,859.30 = 64,962.20/x
  3. Step 3: Cross multiply
    147,906.20x = 221,859.30 × 64,962.20
  4. Step 4: Simplify right side
    147,906.20x = 14,412,468,218.46
  5. Step 5: Solve for x
    x = 14,412,468,218.46/147,906.20
  6. Step 6: Final answer
    x = 97,443.30

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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.