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Finding the Fourth Proportional to 192,030.80, 287,815.80 and 98,488.40

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Solution

The fourth proportional to 192,030.80, 287,815.80 and 98,488.40 is: 147,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,030.80 : 287,815.80 = 98,488.40 : x
  2. Step 2: Convert to fraction form
    192,030.80/287,815.80 = 98,488.40/x
  3. Step 3: Cross multiply
    192,030.80x = 287,815.80 × 98,488.40
  4. Step 4: Simplify right side
    192,030.80x = 28,346,517,636.72
  5. Step 5: Solve for x
    x = 28,346,517,636.72/192,030.80
  6. Step 6: Final answer
    x = 147,614.43

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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.