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Finding the Fourth Proportional to 124,360.61, 171,612.64 and 67,770.77

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Solution

The fourth proportional to 124,360.61, 171,612.64 and 67,770.77 is: 93,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,360.61 : 171,612.64 = 67,770.77 : x
  2. Step 2: Convert to fraction form
    124,360.61/171,612.64 = 67,770.77/x
  3. Step 3: Cross multiply
    124,360.61x = 171,612.64 × 67,770.77
  4. Step 4: Simplify right side
    124,360.61x = 11,630,320,415.68
  5. Step 5: Solve for x
    x = 11,630,320,415.68/124,360.61
  6. Step 6: Final answer
    x = 93,520.93

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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.