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Finding the Fourth Proportional to 108,960.66, 163,342.35 and 75,696.30

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Solution

The fourth proportional to 108,960.66, 163,342.35 and 75,696.30 is: 113,475.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,960.66 : 163,342.35 = 75,696.30 : x
  2. Step 2: Convert to fraction form
    108,960.66/163,342.35 = 75,696.30/x
  3. Step 3: Cross multiply
    108,960.66x = 163,342.35 × 75,696.30
  4. Step 4: Simplify right side
    108,960.66x = 12,364,411,528.31
  5. Step 5: Solve for x
    x = 12,364,411,528.31/108,960.66
  6. Step 6: Final answer
    x = 113,475.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.