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Finding the Fourth Proportional to 134,112.56, 201,206.52 and 39,345

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Solution

The fourth proportional to 134,112.56, 201,206.52 and 39,345 is: 59,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,112.56 : 201,206.52 = 39,345 : x
  2. Step 2: Convert to fraction form
    134,112.56/201,206.52 = 39,345/x
  3. Step 3: Cross multiply
    134,112.56x = 201,206.52 × 39,345
  4. Step 4: Simplify right side
    134,112.56x = 7,916,470,529.40
  5. Step 5: Solve for x
    x = 7,916,470,529.40/134,112.56
  6. Step 6: Final answer
    x = 59,028.55

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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.