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Finding the Fourth Proportional to 68,059.16, 101,870.34 and 36,390.08

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Solution

The fourth proportional to 68,059.16, 101,870.34 and 36,390.08 is: 54,468.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,059.16 : 101,870.34 = 36,390.08 : x
  2. Step 2: Convert to fraction form
    68,059.16/101,870.34 = 36,390.08/x
  3. Step 3: Cross multiply
    68,059.16x = 101,870.34 × 36,390.08
  4. Step 4: Simplify right side
    68,059.16x = 3,707,069,822.23
  5. Step 5: Solve for x
    x = 3,707,069,822.23/68,059.16
  6. Step 6: Final answer
    x = 54,468.35

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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.