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Finding the Fourth Proportional to 356,124.59, 534,214.55 and 103,409.25

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Solution

The fourth proportional to 356,124.59, 534,214.55 and 103,409.25 is: 155,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,124.59 : 534,214.55 = 103,409.25 : x
  2. Step 2: Convert to fraction form
    356,124.59/534,214.55 = 103,409.25/x
  3. Step 3: Cross multiply
    356,124.59x = 534,214.55 × 103,409.25
  4. Step 4: Simplify right side
    356,124.59x = 55,242,726,213.11
  5. Step 5: Solve for x
    x = 55,242,726,213.11/356,124.59
  6. Step 6: Final answer
    x = 155,121.91

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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.