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Finding the Fourth Proportional to 79,467.55, 109,638.47 and 45,007.58

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Solution

The fourth proportional to 79,467.55, 109,638.47 and 45,007.58 is: 62,095.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,467.55 : 109,638.47 = 45,007.58 : x
  2. Step 2: Convert to fraction form
    79,467.55/109,638.47 = 45,007.58/x
  3. Step 3: Cross multiply
    79,467.55x = 109,638.47 × 45,007.58
  4. Step 4: Simplify right side
    79,467.55x = 4,934,562,596.22
  5. Step 5: Solve for x
    x = 4,934,562,596.22/79,467.55
  6. Step 6: Final answer
    x = 62,095.32

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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.