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Finding the Fourth Proportional to 93,278.52, 128,720.61 and 50,836.14

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Solution

The fourth proportional to 93,278.52, 128,720.61 and 50,836.14 is: 70,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.52 : 128,720.61 = 50,836.14 : x
  2. Step 2: Convert to fraction form
    93,278.52/128,720.61 = 50,836.14/x
  3. Step 3: Cross multiply
    93,278.52x = 128,720.61 × 50,836.14
  4. Step 4: Simplify right side
    93,278.52x = 6,543,658,950.85
  5. Step 5: Solve for x
    x = 6,543,658,950.85/93,278.52
  6. Step 6: Final answer
    x = 70,151.83

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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.