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Finding the Fourth Proportional to 67,429.30, 101,030.55 and 53,335.30

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Solution

The fourth proportional to 67,429.30, 101,030.55 and 53,335.30 is: 79,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,429.30 : 101,030.55 = 53,335.30 : x
  2. Step 2: Convert to fraction form
    67,429.30/101,030.55 = 53,335.30/x
  3. Step 3: Cross multiply
    67,429.30x = 101,030.55 × 53,335.30
  4. Step 4: Simplify right side
    67,429.30x = 5,388,494,693.42
  5. Step 5: Solve for x
    x = 5,388,494,693.42/67,429.30
  6. Step 6: Final answer
    x = 79,913.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.