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Finding the Fourth Proportional to 93,307.38, 128,763.99 and 50,865.90

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Solution

The fourth proportional to 93,307.38, 128,763.99 and 50,865.90 is: 70,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,307.38 : 128,763.99 = 50,865.90 : x
  2. Step 2: Convert to fraction form
    93,307.38/128,763.99 = 50,865.90/x
  3. Step 3: Cross multiply
    93,307.38x = 128,763.99 × 50,865.90
  4. Step 4: Simplify right side
    93,307.38x = 6,549,696,238.94
  5. Step 5: Solve for x
    x = 6,549,696,238.94/93,307.38
  6. Step 6: Final answer
    x = 70,194.84

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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.