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Finding the Fourth Proportional to 108,228.60, 149,258.76 and 67,946.12

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Solution

The fourth proportional to 108,228.60, 149,258.76 and 67,946.12 is: 93,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,228.60 : 149,258.76 = 67,946.12 : x
  2. Step 2: Convert to fraction form
    108,228.60/149,258.76 = 67,946.12/x
  3. Step 3: Cross multiply
    108,228.60x = 149,258.76 × 67,946.12
  4. Step 4: Simplify right side
    108,228.60x = 10,141,552,871.72
  5. Step 5: Solve for x
    x = 10,141,552,871.72/108,228.60
  6. Step 6: Final answer
    x = 93,704.93

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1.5x scale

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.