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Finding the Fourth Proportional to 124,487.64, 171,787.74 and 67,895.64

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Solution

The fourth proportional to 124,487.64, 171,787.74 and 67,895.64 is: 93,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,487.64 : 171,787.74 = 67,895.64 : x
  2. Step 2: Convert to fraction form
    124,487.64/171,787.74 = 67,895.64/x
  3. Step 3: Cross multiply
    124,487.64x = 171,787.74 × 67,895.64
  4. Step 4: Simplify right side
    124,487.64x = 11,663,638,551.45
  5. Step 5: Solve for x
    x = 11,663,638,551.45/124,487.64
  6. Step 6: Final answer
    x = 93,693.15

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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.