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Finding the Fourth Proportional to 125,015.99, 187,533.56 and 53,940.32

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Solution

The fourth proportional to 125,015.99, 187,533.56 and 53,940.32 is: 80,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,015.99 : 187,533.56 = 53,940.32 : x
  2. Step 2: Convert to fraction form
    125,015.99/187,533.56 = 53,940.32/x
  3. Step 3: Cross multiply
    125,015.99x = 187,533.56 × 53,940.32
  4. Step 4: Simplify right side
    125,015.99x = 10,115,619,029.77
  5. Step 5: Solve for x
    x = 10,115,619,029.77/125,015.99
  6. Step 6: Final answer
    x = 80,914.60

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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.