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Finding the Fourth Proportional to 85,658.58, 118,210.41 and 47,932.74

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Solution

The fourth proportional to 85,658.58, 118,210.41 and 47,932.74 is: 66,148.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,658.58 : 118,210.41 = 47,932.74 : x
  2. Step 2: Convert to fraction form
    85,658.58/118,210.41 = 47,932.74/x
  3. Step 3: Cross multiply
    85,658.58x = 118,210.41 × 47,932.74
  4. Step 4: Simplify right side
    85,658.58x = 5,666,148,847.82
  5. Step 5: Solve for x
    x = 5,666,148,847.82/85,658.58
  6. Step 6: Final answer
    x = 66,148.06

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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.