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Finding the Fourth Proportional to 76,817.94, 114,573.39 and 75,488.74

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Solution

The fourth proportional to 76,817.94, 114,573.39 and 75,488.74 is: 112,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,817.94 : 114,573.39 = 75,488.74 : x
  2. Step 2: Convert to fraction form
    76,817.94/114,573.39 = 75,488.74/x
  3. Step 3: Cross multiply
    76,817.94x = 114,573.39 × 75,488.74
  4. Step 4: Simplify right side
    76,817.94x = 8,649,000,848.63
  5. Step 5: Solve for x
    x = 8,649,000,848.63/76,817.94
  6. Step 6: Final answer
    x = 112,590.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.