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Finding the Fourth Proportional to 94,631.78, 130,594.78 and 54,353.63

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Solution

The fourth proportional to 94,631.78, 130,594.78 and 54,353.63 is: 75,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,631.78 : 130,594.78 = 54,353.63 : x
  2. Step 2: Convert to fraction form
    94,631.78/130,594.78 = 54,353.63/x
  3. Step 3: Cross multiply
    94,631.78x = 130,594.78 × 54,353.63
  4. Step 4: Simplify right side
    94,631.78x = 7,098,299,563.19
  5. Step 5: Solve for x
    x = 7,098,299,563.19/94,631.78
  6. Step 6: Final answer
    x = 75,009.68

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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.