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Finding the Fourth Proportional to 93,124.16, 128,511.34 and 50,683

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Solution

The fourth proportional to 93,124.16, 128,511.34 and 50,683 is: 69,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,124.16 : 128,511.34 = 50,683 : x
  2. Step 2: Convert to fraction form
    93,124.16/128,511.34 = 50,683/x
  3. Step 3: Cross multiply
    93,124.16x = 128,511.34 × 50,683
  4. Step 4: Simplify right side
    93,124.16x = 6,513,340,245.22
  5. Step 5: Solve for x
    x = 6,513,340,245.22/93,124.16
  6. Step 6: Final answer
    x = 69,942.54

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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.