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Finding the Fourth Proportional to 79,076.42, 118,483.41 and 55,653.65

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Solution

The fourth proportional to 79,076.42, 118,483.41 and 55,653.65 is: 83,388.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,076.42 : 118,483.41 = 55,653.65 : x
  2. Step 2: Convert to fraction form
    79,076.42/118,483.41 = 55,653.65/x
  3. Step 3: Cross multiply
    79,076.42x = 118,483.41 × 55,653.65
  4. Step 4: Simplify right side
    79,076.42x = 6,594,033,978.49
  5. Step 5: Solve for x
    x = 6,594,033,978.49/79,076.42
  6. Step 6: Final answer
    x = 83,388.12

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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.