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Finding the Fourth Proportional to 354,901.50, 532,355.90 and 105,583.50

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Solution

The fourth proportional to 354,901.50, 532,355.90 and 105,583.50 is: 158,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,901.50 : 532,355.90 = 105,583.50 : x
  2. Step 2: Convert to fraction form
    354,901.50/532,355.90 = 105,583.50/x
  3. Step 3: Cross multiply
    354,901.50x = 532,355.90 × 105,583.50
  4. Step 4: Simplify right side
    354,901.50x = 56,207,998,639.73
  5. Step 5: Solve for x
    x = 56,207,998,639.73/354,901.50
  6. Step 6: Final answer
    x = 158,376.33

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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.