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Finding the Fourth Proportional to 221,939.68, 332,810.70 and 64,130.62

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Solution

The fourth proportional to 221,939.68, 332,810.70 and 64,130.62 is: 96,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,939.68 : 332,810.70 = 64,130.62 : x
  2. Step 2: Convert to fraction form
    221,939.68/332,810.70 = 64,130.62/x
  3. Step 3: Cross multiply
    221,939.68x = 332,810.70 × 64,130.62
  4. Step 4: Simplify right side
    221,939.68x = 21,343,356,533.63
  5. Step 5: Solve for x
    x = 21,343,356,533.63/221,939.68
  6. Step 6: Final answer
    x = 96,167.38

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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.