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Finding the Fourth Proportional to 202,368.90, 303,553.35 and 127,245.45

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Solution

The fourth proportional to 202,368.90, 303,553.35 and 127,245.45 is: 190,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,368.90 : 303,553.35 = 127,245.45 : x
  2. Step 2: Convert to fraction form
    202,368.90/303,553.35 = 127,245.45/x
  3. Step 3: Cross multiply
    202,368.90x = 303,553.35 × 127,245.45
  4. Step 4: Simplify right side
    202,368.90x = 38,625,782,619.76
  5. Step 5: Solve for x
    x = 38,625,782,619.76/202,368.90
  6. Step 6: Final answer
    x = 190,868.18

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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.