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Finding the Fourth Proportional to 100,359.51, 150,564.58 and 70,835.01

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Solution

The fourth proportional to 100,359.51, 150,564.58 and 70,835.01 is: 106,270.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,359.51 : 150,564.58 = 70,835.01 : x
  2. Step 2: Convert to fraction form
    100,359.51/150,564.58 = 70,835.01/x
  3. Step 3: Cross multiply
    100,359.51x = 150,564.58 × 70,835.01
  4. Step 4: Simplify right side
    100,359.51x = 10,665,243,352.86
  5. Step 5: Solve for x
    x = 10,665,243,352.86/100,359.51
  6. Step 6: Final answer
    x = 106,270.38

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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.