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Finding the Fourth Proportional to 94,729, 130,711.14 and 54,435

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Solution

The fourth proportional to 94,729, 130,711.14 and 54,435 is: 75,111.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,729 : 130,711.14 = 54,435 : x
  2. Step 2: Convert to fraction form
    94,729/130,711.14 = 54,435/x
  3. Step 3: Cross multiply
    94,729x = 130,711.14 × 54,435
  4. Step 4: Simplify right side
    94,729x = 7,115,260,905.90
  5. Step 5: Solve for x
    x = 7,115,260,905.90/94,729
  6. Step 6: Final answer
    x = 75,111.75

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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.