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Finding the Fourth Proportional to 94,308.92, 130,143.70 and 51,867.48

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Solution

The fourth proportional to 94,308.92, 130,143.70 and 51,867.48 is: 71,575.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,308.92 : 130,143.70 = 51,867.48 : x
  2. Step 2: Convert to fraction form
    94,308.92/130,143.70 = 51,867.48/x
  3. Step 3: Cross multiply
    94,308.92x = 130,143.70 × 51,867.48
  4. Step 4: Simplify right side
    94,308.92x = 6,750,225,627.21
  5. Step 5: Solve for x
    x = 6,750,225,627.21/94,308.92
  6. Step 6: Final answer
    x = 71,575.69

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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.