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Finding the Fourth Proportional to 79,445.58, 109,637.46 and 45,911.58

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Solution

The fourth proportional to 79,445.58, 109,637.46 and 45,911.58 is: 63,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,445.58 : 109,637.46 = 45,911.58 : x
  2. Step 2: Convert to fraction form
    79,445.58/109,637.46 = 45,911.58/x
  3. Step 3: Cross multiply
    79,445.58x = 109,637.46 × 45,911.58
  4. Step 4: Simplify right side
    79,445.58x = 5,033,629,015.79
  5. Step 5: Solve for x
    x = 5,033,629,015.79/79,445.58
  6. Step 6: Final answer
    x = 63,359.46

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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.