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Finding the Fourth Proportional to 98,571.30, 147,859.83 and 38,597.28

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Solution

The fourth proportional to 98,571.30, 147,859.83 and 38,597.28 is: 57,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,571.30 : 147,859.83 = 38,597.28 : x
  2. Step 2: Convert to fraction form
    98,571.30/147,859.83 = 38,597.28/x
  3. Step 3: Cross multiply
    98,571.30x = 147,859.83 × 38,597.28
  4. Step 4: Simplify right side
    98,571.30x = 5,706,987,259.26
  5. Step 5: Solve for x
    x = 5,706,987,259.26/98,571.30
  6. Step 6: Final answer
    x = 57,897.05

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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.