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Finding the Fourth Proportional to 93,320.25, 128,781.96 and 59,786.25

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Solution

The fourth proportional to 93,320.25, 128,781.96 and 59,786.25 is: 82,505.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,320.25 : 128,781.96 = 59,786.25 : x
  2. Step 2: Convert to fraction form
    93,320.25/128,781.96 = 59,786.25/x
  3. Step 3: Cross multiply
    93,320.25x = 128,781.96 × 59,786.25
  4. Step 4: Simplify right side
    93,320.25x = 7,699,390,456.05
  5. Step 5: Solve for x
    x = 7,699,390,456.05/93,320.25
  6. Step 6: Final answer
    x = 82,505.03

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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.