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Finding the Fourth Proportional to 101,962.88, 152,698.22 and 61,319.51

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Solution

The fourth proportional to 101,962.88, 152,698.22 and 61,319.51 is: 91,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,962.88 : 152,698.22 = 61,319.51 : x
  2. Step 2: Convert to fraction form
    101,962.88/152,698.22 = 61,319.51/x
  3. Step 3: Cross multiply
    101,962.88x = 152,698.22 × 61,319.51
  4. Step 4: Simplify right side
    101,962.88x = 9,363,380,028.27
  5. Step 5: Solve for x
    x = 9,363,380,028.27/101,962.88
  6. Step 6: Final answer
    x = 91,831.26

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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.