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Finding the Fourth Proportional to 93,494.64, 140,292.99 and 54,128.64

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Solution

The fourth proportional to 93,494.64, 140,292.99 and 54,128.64 is: 81,222.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,494.64 : 140,292.99 = 54,128.64 : x
  2. Step 2: Convert to fraction form
    93,494.64/140,292.99 = 54,128.64/x
  3. Step 3: Cross multiply
    93,494.64x = 140,292.99 × 54,128.64
  4. Step 4: Simplify right side
    93,494.64x = 7,593,868,750.23
  5. Step 5: Solve for x
    x = 7,593,868,750.23/93,494.64
  6. Step 6: Final answer
    x = 81,222.50

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1.5x scale

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.