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Finding the Fourth Proportional to 93,199.68, 128,611.20 and 50,758.08

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Solution

The fourth proportional to 93,199.68, 128,611.20 and 50,758.08 is: 70,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,199.68 : 128,611.20 = 50,758.08 : x
  2. Step 2: Convert to fraction form
    93,199.68/128,611.20 = 50,758.08/x
  3. Step 3: Cross multiply
    93,199.68x = 128,611.20 × 50,758.08
  4. Step 4: Simplify right side
    93,199.68x = 6,528,057,578.50
  5. Step 5: Solve for x
    x = 6,528,057,578.50/93,199.68
  6. Step 6: Final answer
    x = 70,043.78

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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.