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Finding the Fourth Proportional to 78,952.20, 108,903.08 and 47,096.52

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Solution

The fourth proportional to 78,952.20, 108,903.08 and 47,096.52 is: 64,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,952.20 : 108,903.08 = 47,096.52 : x
  2. Step 2: Convert to fraction form
    78,952.20/108,903.08 = 47,096.52/x
  3. Step 3: Cross multiply
    78,952.20x = 108,903.08 × 47,096.52
  4. Step 4: Simplify right side
    78,952.20x = 5,128,956,085.28
  5. Step 5: Solve for x
    x = 5,128,956,085.28/78,952.20
  6. Step 6: Final answer
    x = 64,962.80

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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.