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Finding the Fourth Proportional to 93,136.64, 128,546.27 and 52,854.15

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Solution

The fourth proportional to 93,136.64, 128,546.27 and 52,854.15 is: 72,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,136.64 : 128,546.27 = 52,854.15 : x
  2. Step 2: Convert to fraction form
    93,136.64/128,546.27 = 52,854.15/x
  3. Step 3: Cross multiply
    93,136.64x = 128,546.27 × 52,854.15
  4. Step 4: Simplify right side
    93,136.64x = 6,794,203,968.66
  5. Step 5: Solve for x
    x = 6,794,203,968.66/93,136.64
  6. Step 6: Final answer
    x = 72,948.78

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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.