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Finding the Fourth Proportional to 99,214.87, 136,911.87 and 56,193.34

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Solution

The fourth proportional to 99,214.87, 136,911.87 and 56,193.34 is: 77,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,214.87 : 136,911.87 = 56,193.34 : x
  2. Step 2: Convert to fraction form
    99,214.87/136,911.87 = 56,193.34/x
  3. Step 3: Cross multiply
    99,214.87x = 136,911.87 × 56,193.34
  4. Step 4: Simplify right side
    99,214.87x = 7,693,535,260.95
  5. Step 5: Solve for x
    x = 7,693,535,260.95/99,214.87
  6. Step 6: Final answer
    x = 77,544.18

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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.