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Finding the Fourth Proportional to 93,302.74, 128,760.60 and 50,861.98

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Solution

The fourth proportional to 93,302.74, 128,760.60 and 50,861.98 is: 70,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,302.74 : 128,760.60 = 50,861.98 : x
  2. Step 2: Convert to fraction form
    93,302.74/128,760.60 = 50,861.98/x
  3. Step 3: Cross multiply
    93,302.74x = 128,760.60 × 50,861.98
  4. Step 4: Simplify right side
    93,302.74x = 6,549,019,061.99
  5. Step 5: Solve for x
    x = 6,549,019,061.99/93,302.74
  6. Step 6: Final answer
    x = 70,191.07

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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.