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Finding the Fourth Proportional to 147,986.60, 221,858.40 and 63,811.40

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Solution

The fourth proportional to 147,986.60, 221,858.40 and 63,811.40 is: 95,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,986.60 : 221,858.40 = 63,811.40 : x
  2. Step 2: Convert to fraction form
    147,986.60/221,858.40 = 63,811.40/x
  3. Step 3: Cross multiply
    147,986.60x = 221,858.40 × 63,811.40
  4. Step 4: Simplify right side
    147,986.60x = 14,157,095,105.76
  5. Step 5: Solve for x
    x = 14,157,095,105.76/147,986.60
  6. Step 6: Final answer
    x = 95,664.71

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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.