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Finding the Fourth Proportional to 76,675.60, 114,905.40 and 60,907.60

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Solution

The fourth proportional to 76,675.60, 114,905.40 and 60,907.60 is: 91,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,675.60 : 114,905.40 = 60,907.60 : x
  2. Step 2: Convert to fraction form
    76,675.60/114,905.40 = 60,907.60/x
  3. Step 3: Cross multiply
    76,675.60x = 114,905.40 × 60,907.60
  4. Step 4: Simplify right side
    76,675.60x = 6,998,612,141.04
  5. Step 5: Solve for x
    x = 6,998,612,141.04/76,675.60
  6. Step 6: Final answer
    x = 91,275.61

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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.