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Finding the Fourth Proportional to 107,050.92, 147,700.08 and 61,725.32

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Solution

The fourth proportional to 107,050.92, 147,700.08 and 61,725.32 is: 85,163.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,050.92 : 147,700.08 = 61,725.32 : x
  2. Step 2: Convert to fraction form
    107,050.92/147,700.08 = 61,725.32/x
  3. Step 3: Cross multiply
    107,050.92x = 147,700.08 × 61,725.32
  4. Step 4: Simplify right side
    107,050.92x = 9,116,834,702.03
  5. Step 5: Solve for x
    x = 9,116,834,702.03/107,050.92
  6. Step 6: Final answer
    x = 85,163.53

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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.