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Finding the Fourth Proportional to 99,812.70, 149,594.44 and 49,907.06

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Solution

The fourth proportional to 99,812.70, 149,594.44 and 49,907.06 is: 74,798.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,812.70 : 149,594.44 = 49,907.06 : x
  2. Step 2: Convert to fraction form
    99,812.70/149,594.44 = 49,907.06/x
  3. Step 3: Cross multiply
    99,812.70x = 149,594.44 × 49,907.06
  4. Step 4: Simplify right side
    99,812.70x = 7,465,819,066.73
  5. Step 5: Solve for x
    x = 7,465,819,066.73/99,812.70
  6. Step 6: Final answer
    x = 74,798.29

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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.