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Finding the Fourth Proportional to 93,086.19, 128,458.71 and 50,644.62

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Solution

The fourth proportional to 93,086.19, 128,458.71 and 50,644.62 is: 69,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,086.19 : 128,458.71 = 50,644.62 : x
  2. Step 2: Convert to fraction form
    93,086.19/128,458.71 = 50,644.62/x
  3. Step 3: Cross multiply
    93,086.19x = 128,458.71 × 50,644.62
  4. Step 4: Simplify right side
    93,086.19x = 6,505,742,553.64
  5. Step 5: Solve for x
    x = 6,505,742,553.64/93,086.19
  6. Step 6: Final answer
    x = 69,889.45

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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.