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Finding the Fourth Proportional to 344,638.48, 516,957.90 and 107,999.68

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Solution

The fourth proportional to 344,638.48, 516,957.90 and 107,999.68 is: 161,999.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,638.48 : 516,957.90 = 107,999.68 : x
  2. Step 2: Convert to fraction form
    344,638.48/516,957.90 = 107,999.68/x
  3. Step 3: Cross multiply
    344,638.48x = 516,957.90 × 107,999.68
  4. Step 4: Simplify right side
    344,638.48x = 55,831,287,773.47
  5. Step 5: Solve for x
    x = 55,831,287,773.47/344,638.48
  6. Step 6: Final answer
    x = 161,999.58

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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.