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Finding the Fourth Proportional to 225,003.50, 310,511.31 and 124,407.98

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Solution

The fourth proportional to 225,003.50, 310,511.31 and 124,407.98 is: 171,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,003.50 : 310,511.31 = 124,407.98 : x
  2. Step 2: Convert to fraction form
    225,003.50/310,511.31 = 124,407.98/x
  3. Step 3: Cross multiply
    225,003.50x = 310,511.31 × 124,407.98
  4. Step 4: Simplify right side
    225,003.50x = 38,630,084,844.25
  5. Step 5: Solve for x
    x = 38,630,084,844.25/225,003.50
  6. Step 6: Final answer
    x = 171,686.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.