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Finding the Fourth Proportional to 147,798.92, 221,647.98 and 42,589.64

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Solution

The fourth proportional to 147,798.92, 221,647.98 and 42,589.64 is: 63,869.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,798.92 : 221,647.98 = 42,589.64 : x
  2. Step 2: Convert to fraction form
    147,798.92/221,647.98 = 42,589.64/x
  3. Step 3: Cross multiply
    147,798.92x = 221,647.98 × 42,589.64
  4. Step 4: Simplify right side
    147,798.92x = 9,439,907,674.93
  5. Step 5: Solve for x
    x = 9,439,907,674.93/147,798.92
  6. Step 6: Final answer
    x = 63,869.94

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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.