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Finding the Fourth Proportional to 133,034.40, 199,648.80 and 88,646.40

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Solution

The fourth proportional to 133,034.40, 199,648.80 and 88,646.40 is: 133,034.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,034.40 : 199,648.80 = 88,646.40 : x
  2. Step 2: Convert to fraction form
    133,034.40/199,648.80 = 88,646.40/x
  3. Step 3: Cross multiply
    133,034.40x = 199,648.80 × 88,646.40
  4. Step 4: Simplify right side
    133,034.40x = 17,698,147,384.32
  5. Step 5: Solve for x
    x = 17,698,147,384.32/133,034.40
  6. Step 6: Final answer
    x = 133,034.37

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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.