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Finding the Fourth Proportional to 93,091.92, 128,463.03 and 50,650.47

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Solution

The fourth proportional to 93,091.92, 128,463.03 and 50,650.47 is: 69,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,091.92 : 128,463.03 = 50,650.47 : x
  2. Step 2: Convert to fraction form
    93,091.92/128,463.03 = 50,650.47/x
  3. Step 3: Cross multiply
    93,091.92x = 128,463.03 × 50,650.47
  4. Step 4: Simplify right side
    93,091.92x = 6,506,712,847.12
  5. Step 5: Solve for x
    x = 6,506,712,847.12/93,091.92
  6. Step 6: Final answer
    x = 69,895.57

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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.