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Finding the Fourth Proportional to 531,404.79, 797,107.75 and 132,045.56

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Solution

The fourth proportional to 531,404.79, 797,107.75 and 132,045.56 is: 198,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,404.79 : 797,107.75 = 132,045.56 : x
  2. Step 2: Convert to fraction form
    531,404.79/797,107.75 = 132,045.56/x
  3. Step 3: Cross multiply
    531,404.79x = 797,107.75 × 132,045.56
  4. Step 4: Simplify right side
    531,404.79x = 105,254,539,229.09
  5. Step 5: Solve for x
    x = 105,254,539,229.09/531,404.79
  6. Step 6: Final answer
    x = 198,068.48

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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.