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Finding the Fourth Proportional to 93,082.69, 128,454.68 and 50,641.53

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Solution

The fourth proportional to 93,082.69, 128,454.68 and 50,641.53 is: 69,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,082.69 : 128,454.68 = 50,641.53 : x
  2. Step 2: Convert to fraction form
    93,082.69/128,454.68 = 50,641.53/x
  3. Step 3: Cross multiply
    93,082.69x = 128,454.68 × 50,641.53
  4. Step 4: Simplify right side
    93,082.69x = 6,505,141,175.76
  5. Step 5: Solve for x
    x = 6,505,141,175.76/93,082.69
  6. Step 6: Final answer
    x = 69,885.62

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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.