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Finding the Fourth Proportional to 93,315.87, 128,777.91 and 50,874.69

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Solution

The fourth proportional to 93,315.87, 128,777.91 and 50,874.69 is: 70,208.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,315.87 : 128,777.91 = 50,874.69 : x
  2. Step 2: Convert to fraction form
    93,315.87/128,777.91 = 50,874.69/x
  3. Step 3: Cross multiply
    93,315.87x = 128,777.91 × 50,874.69
  4. Step 4: Simplify right side
    93,315.87x = 6,551,536,250.10
  5. Step 5: Solve for x
    x = 6,551,536,250.10/93,315.87
  6. Step 6: Final answer
    x = 70,208.17

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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.