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Finding the Fourth Proportional to 93,124, 128,511.12 and 50,682.84

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Solution

The fourth proportional to 93,124, 128,511.12 and 50,682.84 is: 69,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,124 : 128,511.12 = 50,682.84 : x
  2. Step 2: Convert to fraction form
    93,124/128,511.12 = 50,682.84/x
  3. Step 3: Cross multiply
    93,124x = 128,511.12 × 50,682.84
  4. Step 4: Simplify right side
    93,124x = 6,513,308,533.18
  5. Step 5: Solve for x
    x = 6,513,308,533.18/93,124
  6. Step 6: Final answer
    x = 69,942.32

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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.