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Finding the Fourth Proportional to 147,478.56, 221,218.56 and 36,670.56

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Solution

The fourth proportional to 147,478.56, 221,218.56 and 36,670.56 is: 55,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,478.56 : 221,218.56 = 36,670.56 : x
  2. Step 2: Convert to fraction form
    147,478.56/221,218.56 = 36,670.56/x
  3. Step 3: Cross multiply
    147,478.56x = 221,218.56 × 36,670.56
  4. Step 4: Simplify right side
    147,478.56x = 8,112,208,477.59
  5. Step 5: Solve for x
    x = 8,112,208,477.59/147,478.56
  6. Step 6: Final answer
    x = 55,006.02

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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.