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Finding the Fourth Proportional to 124,253.16, 171,471.32 and 67,664.48

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Solution

The fourth proportional to 124,253.16, 171,471.32 and 67,664.48 is: 93,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,253.16 : 171,471.32 = 67,664.48 : x
  2. Step 2: Convert to fraction form
    124,253.16/171,471.32 = 67,664.48/x
  3. Step 3: Cross multiply
    124,253.16x = 171,471.32 × 67,664.48
  4. Step 4: Simplify right side
    124,253.16x = 11,602,517,702.71
  5. Step 5: Solve for x
    x = 11,602,517,702.71/124,253.16
  6. Step 6: Final answer
    x = 93,378.05

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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.