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Finding the Fourth Proportional to 108,522.60, 162,783.90 and 91,026.60

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Solution

The fourth proportional to 108,522.60, 162,783.90 and 91,026.60 is: 136,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,522.60 : 162,783.90 = 91,026.60 : x
  2. Step 2: Convert to fraction form
    108,522.60/162,783.90 = 91,026.60/x
  3. Step 3: Cross multiply
    108,522.60x = 162,783.90 × 91,026.60
  4. Step 4: Simplify right side
    108,522.60x = 14,817,664,951.74
  5. Step 5: Solve for x
    x = 14,817,664,951.74/108,522.60
  6. Step 6: Final answer
    x = 136,539.90

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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.