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Finding the Fourth Proportional to 108,303.60, 149,459.85 and 59,912.58

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Solution

The fourth proportional to 108,303.60, 149,459.85 and 59,912.58 is: 82,679.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,303.60 : 149,459.85 = 59,912.58 : x
  2. Step 2: Convert to fraction form
    108,303.60/149,459.85 = 59,912.58/x
  3. Step 3: Cross multiply
    108,303.60x = 149,459.85 × 59,912.58
  4. Step 4: Simplify right side
    108,303.60x = 8,954,525,219.91
  5. Step 5: Solve for x
    x = 8,954,525,219.91/108,303.60
  6. Step 6: Final answer
    x = 82,679.85

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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.