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Finding the Fourth Proportional to 122,415.86, 183,476.16 and 63,219.26

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Solution

The fourth proportional to 122,415.86, 183,476.16 and 63,219.26 is: 94,752.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,415.86 : 183,476.16 = 63,219.26 : x
  2. Step 2: Convert to fraction form
    122,415.86/183,476.16 = 63,219.26/x
  3. Step 3: Cross multiply
    122,415.86x = 183,476.16 × 63,219.26
  4. Step 4: Simplify right side
    122,415.86x = 11,599,227,062.84
  5. Step 5: Solve for x
    x = 11,599,227,062.84/122,415.86
  6. Step 6: Final answer
    x = 94,752.65

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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.