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Finding the Fourth Proportional to 531,406.79, 797,110.75 and 132,047.56

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Solution

The fourth proportional to 531,406.79, 797,110.75 and 132,047.56 is: 198,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,406.79 : 797,110.75 = 132,047.56 : x
  2. Step 2: Convert to fraction form
    531,406.79/797,110.75 = 132,047.56/x
  3. Step 3: Cross multiply
    531,406.79x = 797,110.75 × 132,047.56
  4. Step 4: Simplify right side
    531,406.79x = 105,256,529,587.27
  5. Step 5: Solve for x
    x = 105,256,529,587.27/531,406.79
  6. Step 6: Final answer
    x = 198,071.48

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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.