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Finding the Fourth Proportional to 119,495.70, 179,268.12 and 99,911.12

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Solution

The fourth proportional to 119,495.70, 179,268.12 and 99,911.12 is: 149,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,495.70 : 179,268.12 = 99,911.12 : x
  2. Step 2: Convert to fraction form
    119,495.70/179,268.12 = 99,911.12/x
  3. Step 3: Cross multiply
    119,495.70x = 179,268.12 × 99,911.12
  4. Step 4: Simplify right side
    119,495.70x = 17,910,877,753.15
  5. Step 5: Solve for x
    x = 17,910,877,753.15/119,495.70
  6. Step 6: Final answer
    x = 149,887.22

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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.