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Finding the Fourth Proportional to 144,805.23, 216,753.44 and 99,562.58

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Solution

The fourth proportional to 144,805.23, 216,753.44 and 99,562.58 is: 149,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,805.23 : 216,753.44 = 99,562.58 : x
  2. Step 2: Convert to fraction form
    144,805.23/216,753.44 = 99,562.58/x
  3. Step 3: Cross multiply
    144,805.23x = 216,753.44 × 99,562.58
  4. Step 4: Simplify right side
    144,805.23x = 21,580,530,941.52
  5. Step 5: Solve for x
    x = 21,580,530,941.52/144,805.23
  6. Step 6: Final answer
    x = 149,031.43

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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.