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Finding the Fourth Proportional to 325,641.71, 488,628.62 and 157,305.59

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Solution

The fourth proportional to 325,641.71, 488,628.62 and 157,305.59 is: 236,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,641.71 : 488,628.62 = 157,305.59 : x
  2. Step 2: Convert to fraction form
    325,641.71/488,628.62 = 157,305.59/x
  3. Step 3: Cross multiply
    325,641.71x = 488,628.62 × 157,305.59
  4. Step 4: Simplify right side
    325,641.71x = 76,864,013,359.99
  5. Step 5: Solve for x
    x = 76,864,013,359.99/325,641.71
  6. Step 6: Final answer
    x = 236,038.60

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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.