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Finding the Fourth Proportional to 99,646.48, 137,511.24 and 54,934.48

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Solution

The fourth proportional to 99,646.48, 137,511.24 and 54,934.48 is: 75,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,646.48 : 137,511.24 = 54,934.48 : x
  2. Step 2: Convert to fraction form
    99,646.48/137,511.24 = 54,934.48/x
  3. Step 3: Cross multiply
    99,646.48x = 137,511.24 × 54,934.48
  4. Step 4: Simplify right side
    99,646.48x = 7,554,108,463.56
  5. Step 5: Solve for x
    x = 7,554,108,463.56/99,646.48
  6. Step 6: Final answer
    x = 75,809.08

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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.