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Finding the Fourth Proportional to 93,085.42, 128,461.08 and 50,645.56

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Solution

The fourth proportional to 93,085.42, 128,461.08 and 50,645.56 is: 69,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,085.42 : 128,461.08 = 50,645.56 : x
  2. Step 2: Convert to fraction form
    93,085.42/128,461.08 = 50,645.56/x
  3. Step 3: Cross multiply
    93,085.42x = 128,461.08 × 50,645.56
  4. Step 4: Simplify right side
    93,085.42x = 6,505,983,334.80
  5. Step 5: Solve for x
    x = 6,505,983,334.80/93,085.42
  6. Step 6: Final answer
    x = 69,892.61

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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.