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Finding the Fourth Proportional to 192,001.80, 287,772.30 and 98,459.40

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Solution

The fourth proportional to 192,001.80, 287,772.30 and 98,459.40 is: 147,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,001.80 : 287,772.30 = 98,459.40 : x
  2. Step 2: Convert to fraction form
    192,001.80/287,772.30 = 98,459.40/x
  3. Step 3: Cross multiply
    192,001.80x = 287,772.30 × 98,459.40
  4. Step 4: Simplify right side
    192,001.80x = 28,333,887,994.62
  5. Step 5: Solve for x
    x = 28,333,887,994.62/192,001.80
  6. Step 6: Final answer
    x = 147,570.95

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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.