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Finding the Fourth Proportional to 88,772.72, 122,507.28 and 48,487.64

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Solution

The fourth proportional to 88,772.72, 122,507.28 and 48,487.64 is: 66,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,772.72 : 122,507.28 = 48,487.64 : x
  2. Step 2: Convert to fraction form
    88,772.72/122,507.28 = 48,487.64/x
  3. Step 3: Cross multiply
    88,772.72x = 122,507.28 × 48,487.64
  4. Step 4: Simplify right side
    88,772.72x = 5,940,088,890.02
  5. Step 5: Solve for x
    x = 5,940,088,890.02/88,772.72
  6. Step 6: Final answer
    x = 66,913.45

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1.5x scale

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.