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Finding the Fourth Proportional to 354,426.35, 531,567 and 101,639.12

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Solution

The fourth proportional to 354,426.35, 531,567 and 101,639.12 is: 152,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,426.35 : 531,567 = 101,639.12 : x
  2. Step 2: Convert to fraction form
    354,426.35/531,567 = 101,639.12/x
  3. Step 3: Cross multiply
    354,426.35x = 531,567 × 101,639.12
  4. Step 4: Simplify right side
    354,426.35x = 54,027,999,443.21
  5. Step 5: Solve for x
    x = 54,027,999,443.21/354,426.35
  6. Step 6: Final answer
    x = 152,437.88

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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.