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Finding the Fourth Proportional to 147,471.50, 221,208.09 and 36,663.50

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Solution

The fourth proportional to 147,471.50, 221,208.09 and 36,663.50 is: 54,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,471.50 : 221,208.09 = 36,663.50 : x
  2. Step 2: Convert to fraction form
    147,471.50/221,208.09 = 36,663.50/x
  3. Step 3: Cross multiply
    147,471.50x = 221,208.09 × 36,663.50
  4. Step 4: Simplify right side
    147,471.50x = 8,110,262,807.72
  5. Step 5: Solve for x
    x = 8,110,262,807.72/147,471.50
  6. Step 6: Final answer
    x = 54,995.46

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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.