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Finding the Fourth Proportional to 133,393.80, 200,090.70 and 127,488.90

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Solution

The fourth proportional to 133,393.80, 200,090.70 and 127,488.90 is: 191,233.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,393.80 : 200,090.70 = 127,488.90 : x
  2. Step 2: Convert to fraction form
    133,393.80/200,090.70 = 127,488.90/x
  3. Step 3: Cross multiply
    133,393.80x = 200,090.70 × 127,488.90
  4. Step 4: Simplify right side
    133,393.80x = 25,509,343,243.23
  5. Step 5: Solve for x
    x = 25,509,343,243.23/133,393.80
  6. Step 6: Final answer
    x = 191,233.35

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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.