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Finding the Fourth Proportional to 105,043.88, 144,962.52 and 57,298.94

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Solution

The fourth proportional to 105,043.88, 144,962.52 and 57,298.94 is: 79,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,043.88 : 144,962.52 = 57,298.94 : x
  2. Step 2: Convert to fraction form
    105,043.88/144,962.52 = 57,298.94/x
  3. Step 3: Cross multiply
    105,043.88x = 144,962.52 × 57,298.94
  4. Step 4: Simplify right side
    105,043.88x = 8,306,198,010.92
  5. Step 5: Solve for x
    x = 8,306,198,010.92/105,043.88
  6. Step 6: Final answer
    x = 79,073.61

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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.