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Finding the Fourth Proportional to 144,993.90, 200,253.69 and 99,810.48

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Solution

The fourth proportional to 144,993.90, 200,253.69 and 99,810.48 is: 137,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,993.90 : 200,253.69 = 99,810.48 : x
  2. Step 2: Convert to fraction form
    144,993.90/200,253.69 = 99,810.48/x
  3. Step 3: Cross multiply
    144,993.90x = 200,253.69 × 99,810.48
  4. Step 4: Simplify right side
    144,993.90x = 19,987,416,920.67
  5. Step 5: Solve for x
    x = 19,987,416,920.67/144,993.90
  6. Step 6: Final answer
    x = 137,850.05

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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.