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Finding the Fourth Proportional to 192,000.80, 287,770.80 and 98,458.40

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Solution

The fourth proportional to 192,000.80, 287,770.80 and 98,458.40 is: 147,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,000.80 : 287,770.80 = 98,458.40 : x
  2. Step 2: Convert to fraction form
    192,000.80/287,770.80 = 98,458.40/x
  3. Step 3: Cross multiply
    192,000.80x = 287,770.80 × 98,458.40
  4. Step 4: Simplify right side
    192,000.80x = 28,333,452,534.72
  5. Step 5: Solve for x
    x = 28,333,452,534.72/192,000.80
  6. Step 6: Final answer
    x = 147,569.45

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1.5x scale

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.