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Finding the Fourth Proportional to 76,491.60, 114,737.40 and 51,608.40

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Solution

The fourth proportional to 76,491.60, 114,737.40 and 51,608.40 is: 77,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,491.60 : 114,737.40 = 51,608.40 : x
  2. Step 2: Convert to fraction form
    76,491.60/114,737.40 = 51,608.40/x
  3. Step 3: Cross multiply
    76,491.60x = 114,737.40 × 51,608.40
  4. Step 4: Simplify right side
    76,491.60x = 5,921,413,634.16
  5. Step 5: Solve for x
    x = 5,921,413,634.16/76,491.60
  6. Step 6: Final answer
    x = 77,412.60

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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.