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Finding the Fourth Proportional to 93,322.68, 128,770.86 and 53,571

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Solution

The fourth proportional to 93,322.68, 128,770.86 and 53,571 is: 73,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,322.68 : 128,770.86 = 53,571 : x
  2. Step 2: Convert to fraction form
    93,322.68/128,770.86 = 53,571/x
  3. Step 3: Cross multiply
    93,322.68x = 128,770.86 × 53,571
  4. Step 4: Simplify right side
    93,322.68x = 6,898,383,741.06
  5. Step 5: Solve for x
    x = 6,898,383,741.06/93,322.68
  6. Step 6: Final answer
    x = 73,919.69

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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.