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Finding the Fourth Proportional to 196,707.80, 295,061.70 and 117,781.40

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Solution

The fourth proportional to 196,707.80, 295,061.70 and 117,781.40 is: 176,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,707.80 : 295,061.70 = 117,781.40 : x
  2. Step 2: Convert to fraction form
    196,707.80/295,061.70 = 117,781.40/x
  3. Step 3: Cross multiply
    196,707.80x = 295,061.70 × 117,781.40
  4. Step 4: Simplify right side
    196,707.80x = 34,752,780,112.38
  5. Step 5: Solve for x
    x = 34,752,780,112.38/196,707.80
  6. Step 6: Final answer
    x = 176,672.10

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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.