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Finding the Fourth Proportional to 124,276.36, 171,503.36 and 67,687.74

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Solution

The fourth proportional to 124,276.36, 171,503.36 and 67,687.74 is: 93,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,276.36 : 171,503.36 = 67,687.74 : x
  2. Step 2: Convert to fraction form
    124,276.36/171,503.36 = 67,687.74/x
  3. Step 3: Cross multiply
    124,276.36x = 171,503.36 × 67,687.74
  4. Step 4: Simplify right side
    124,276.36x = 11,608,674,840.81
  5. Step 5: Solve for x
    x = 11,608,674,840.81/124,276.36
  6. Step 6: Final answer
    x = 93,410.16

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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.