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Finding the Fourth Proportional to 192,127.40, 288,191.10 and 133,078.40

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Solution

The fourth proportional to 192,127.40, 288,191.10 and 133,078.40 is: 199,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,127.40 : 288,191.10 = 133,078.40 : x
  2. Step 2: Convert to fraction form
    192,127.40/288,191.10 = 133,078.40/x
  3. Step 3: Cross multiply
    192,127.40x = 288,191.10 × 133,078.40
  4. Step 4: Simplify right side
    192,127.40x = 38,352,010,482.24
  5. Step 5: Solve for x
    x = 38,352,010,482.24/192,127.40
  6. Step 6: Final answer
    x = 199,617.60

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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.