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Finding the Fourth Proportional to 356,505.33, 534,845.47 and 103,788.08

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Solution

The fourth proportional to 356,505.33, 534,845.47 and 103,788.08 is: 155,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,505.33 : 534,845.47 = 103,788.08 : x
  2. Step 2: Convert to fraction form
    356,505.33/534,845.47 = 103,788.08/x
  3. Step 3: Cross multiply
    356,505.33x = 534,845.47 × 103,788.08
  4. Step 4: Simplify right side
    356,505.33x = 55,510,584,428.00
  5. Step 5: Solve for x
    x = 55,510,584,428.00/356,505.33
  6. Step 6: Final answer
    x = 155,707.59

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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.