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Finding the Fourth Proportional to 99,853.99, 137,799.60 and 54,533.30

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Solution

The fourth proportional to 99,853.99, 137,799.60 and 54,533.30 is: 75,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853.99 : 137,799.60 = 54,533.30 : x
  2. Step 2: Convert to fraction form
    99,853.99/137,799.60 = 54,533.30/x
  3. Step 3: Cross multiply
    99,853.99x = 137,799.60 × 54,533.30
  4. Step 4: Simplify right side
    99,853.99x = 7,514,666,654.01
  5. Step 5: Solve for x
    x = 7,514,666,654.01/99,853.99
  6. Step 6: Final answer
    x = 75,256.55

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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.