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Finding the Fourth Proportional to 93,726.60, 140,622.30 and 90,486.60

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Solution

The fourth proportional to 93,726.60, 140,622.30 and 90,486.60 is: 135,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,726.60 : 140,622.30 = 90,486.60 : x
  2. Step 2: Convert to fraction form
    93,726.60/140,622.30 = 90,486.60/x
  3. Step 3: Cross multiply
    93,726.60x = 140,622.30 × 90,486.60
  4. Step 4: Simplify right side
    93,726.60x = 12,724,433,811.18
  5. Step 5: Solve for x
    x = 12,724,433,811.18/93,726.60
  6. Step 6: Final answer
    x = 135,761.18

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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.