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Finding the Fourth Proportional to 93,344.88, 128,815.94 and 50,903.71

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Solution

The fourth proportional to 93,344.88, 128,815.94 and 50,903.71 is: 70,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,344.88 : 128,815.94 = 50,903.71 : x
  2. Step 2: Convert to fraction form
    93,344.88/128,815.94 = 50,903.71/x
  3. Step 3: Cross multiply
    93,344.88x = 128,815.94 × 50,903.71
  4. Step 4: Simplify right side
    93,344.88x = 6,557,209,253.14
  5. Step 5: Solve for x
    x = 6,557,209,253.14/93,344.88
  6. Step 6: Final answer
    x = 70,247.12

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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.