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Finding the Fourth Proportional to 190,843.20, 286,264.80 and 97,531.20

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Solution

The fourth proportional to 190,843.20, 286,264.80 and 97,531.20 is: 146,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,843.20 : 286,264.80 = 97,531.20 : x
  2. Step 2: Convert to fraction form
    190,843.20/286,264.80 = 97,531.20/x
  3. Step 3: Cross multiply
    190,843.20x = 286,264.80 × 97,531.20
  4. Step 4: Simplify right side
    190,843.20x = 27,919,749,461.76
  5. Step 5: Solve for x
    x = 27,919,749,461.76/190,843.20
  6. Step 6: Final answer
    x = 146,296.80

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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.