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Finding the Fourth Proportional to 107,620.98, 148,518.94 and 59,878.78

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Solution

The fourth proportional to 107,620.98, 148,518.94 and 59,878.78 is: 82,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,620.98 : 148,518.94 = 59,878.78 : x
  2. Step 2: Convert to fraction form
    107,620.98/148,518.94 = 59,878.78/x
  3. Step 3: Cross multiply
    107,620.98x = 148,518.94 × 59,878.78
  4. Step 4: Simplify right side
    107,620.98x = 8,893,132,934.09
  5. Step 5: Solve for x
    x = 8,893,132,934.09/107,620.98
  6. Step 6: Final answer
    x = 82,633.82

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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.