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Finding the Fourth Proportional to 93,118.55, 128,506.29 and 50,679.77

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Solution

The fourth proportional to 93,118.55, 128,506.29 and 50,679.77 is: 69,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,118.55 : 128,506.29 = 50,679.77 : x
  2. Step 2: Convert to fraction form
    93,118.55/128,506.29 = 50,679.77/x
  3. Step 3: Cross multiply
    93,118.55x = 128,506.29 × 50,679.77
  4. Step 4: Simplify right side
    93,118.55x = 6,512,669,220.75
  5. Step 5: Solve for x
    x = 6,512,669,220.75/93,118.55
  6. Step 6: Final answer
    x = 69,939.55

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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.