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Finding the Fourth Proportional to 202,196.20, 303,543.90 and 127,316.20

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Solution

The fourth proportional to 202,196.20, 303,543.90 and 127,316.20 is: 191,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,196.20 : 303,543.90 = 127,316.20 : x
  2. Step 2: Convert to fraction form
    202,196.20/303,543.90 = 127,316.20/x
  3. Step 3: Cross multiply
    202,196.20x = 303,543.90 × 127,316.20
  4. Step 4: Simplify right side
    202,196.20x = 38,646,055,881.18
  5. Step 5: Solve for x
    x = 38,646,055,881.18/202,196.20
  6. Step 6: Final answer
    x = 191,131.46

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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.