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Finding the Fourth Proportional to 93,191.61, 128,605.90 and 50,750.11

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Solution

The fourth proportional to 93,191.61, 128,605.90 and 50,750.11 is: 70,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,191.61 : 128,605.90 = 50,750.11 : x
  2. Step 2: Convert to fraction form
    93,191.61/128,605.90 = 50,750.11/x
  3. Step 3: Cross multiply
    93,191.61x = 128,605.90 × 50,750.11
  4. Step 4: Simplify right side
    93,191.61x = 6,526,763,571.65
  5. Step 5: Solve for x
    x = 6,526,763,571.65/93,191.61
  6. Step 6: Final answer
    x = 70,035.96

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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.