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Finding the Fourth Proportional to 93,232.80, 128,656.80 and 50,791.20

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Solution

The fourth proportional to 93,232.80, 128,656.80 and 50,791.20 is: 70,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,232.80 : 128,656.80 = 50,791.20 : x
  2. Step 2: Convert to fraction form
    93,232.80/128,656.80 = 50,791.20/x
  3. Step 3: Cross multiply
    93,232.80x = 128,656.80 × 50,791.20
  4. Step 4: Simplify right side
    93,232.80x = 6,534,633,260.16
  5. Step 5: Solve for x
    x = 6,534,633,260.16/93,232.80
  6. Step 6: Final answer
    x = 70,089.42

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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.