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Finding the Fourth Proportional to 93,200.80, 128,618.57 and 50,759.30

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Solution

The fourth proportional to 93,200.80, 128,618.57 and 50,759.30 is: 70,048.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,200.80 : 128,618.57 = 50,759.30 : x
  2. Step 2: Convert to fraction form
    93,200.80/128,618.57 = 50,759.30/x
  3. Step 3: Cross multiply
    93,200.80x = 128,618.57 × 50,759.30
  4. Step 4: Simplify right side
    93,200.80x = 6,528,588,258.65
  5. Step 5: Solve for x
    x = 6,528,588,258.65/93,200.80
  6. Step 6: Final answer
    x = 70,048.63

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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.