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Finding the Fourth Proportional to 141,694.84, 195,541.32 and 78,032.08

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Solution

The fourth proportional to 141,694.84, 195,541.32 and 78,032.08 is: 107,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,694.84 : 195,541.32 = 78,032.08 : x
  2. Step 2: Convert to fraction form
    141,694.84/195,541.32 = 78,032.08/x
  3. Step 3: Cross multiply
    141,694.84x = 195,541.32 × 78,032.08
  4. Step 4: Simplify right side
    141,694.84x = 15,258,495,925.55
  5. Step 5: Solve for x
    x = 15,258,495,925.55/141,694.84
  6. Step 6: Final answer
    x = 107,685.61

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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.