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Finding the Fourth Proportional to 220,557.74, 330,852.42 and 92,345.00

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Solution

The fourth proportional to 220,557.74, 330,852.42 and 92,345.00 is: 138,524.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,557.74 : 330,852.42 = 92,345.00 : x
  2. Step 2: Convert to fraction form
    220,557.74/330,852.42 = 92,345.00/x
  3. Step 3: Cross multiply
    220,557.74x = 330,852.42 × 92,345.00
  4. Step 4: Simplify right side
    220,557.74x = 30,552,565,070.64
  5. Step 5: Solve for x
    x = 30,552,565,070.64/220,557.74
  6. Step 6: Final answer
    x = 138,524.12

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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.