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Finding the Fourth Proportional to 79,644.55, 109,909.88 and 45,655.08

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Solution

The fourth proportional to 79,644.55, 109,909.88 and 45,655.08 is: 63,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,644.55 : 109,909.88 = 45,655.08 : x
  2. Step 2: Convert to fraction form
    79,644.55/109,909.88 = 45,655.08/x
  3. Step 3: Cross multiply
    79,644.55x = 109,909.88 × 45,655.08
  4. Step 4: Simplify right side
    79,644.55x = 5,017,944,364.19
  5. Step 5: Solve for x
    x = 5,017,944,364.19/79,644.55
  6. Step 6: Final answer
    x = 63,004.24

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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.