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Finding the Fourth Proportional to 104,991.40, 157,487.10 and 57,752.20

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Solution

The fourth proportional to 104,991.40, 157,487.10 and 57,752.20 is: 86,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.40 : 157,487.10 = 57,752.20 : x
  2. Step 2: Convert to fraction form
    104,991.40/157,487.10 = 57,752.20/x
  3. Step 3: Cross multiply
    104,991.40x = 157,487.10 × 57,752.20
  4. Step 4: Simplify right side
    104,991.40x = 9,095,226,496.62
  5. Step 5: Solve for x
    x = 9,095,226,496.62/104,991.40
  6. Step 6: Final answer
    x = 86,628.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.