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Finding the Fourth Proportional to 324,940.93, 487,203.75 and 156,125.32

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Solution

The fourth proportional to 324,940.93, 487,203.75 and 156,125.32 is: 234,088.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,940.93 : 487,203.75 = 156,125.32 : x
  2. Step 2: Convert to fraction form
    324,940.93/487,203.75 = 156,125.32/x
  3. Step 3: Cross multiply
    324,940.93x = 487,203.75 × 156,125.32
  4. Step 4: Simplify right side
    324,940.93x = 76,064,841,373.95
  5. Step 5: Solve for x
    x = 76,064,841,373.95/324,940.93
  6. Step 6: Final answer
    x = 234,088.21

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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.