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Finding the Fourth Proportional to 196,877.80, 295,316.70 and 91,707.40

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Solution

The fourth proportional to 196,877.80, 295,316.70 and 91,707.40 is: 137,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,877.80 : 295,316.70 = 91,707.40 : x
  2. Step 2: Convert to fraction form
    196,877.80/295,316.70 = 91,707.40/x
  3. Step 3: Cross multiply
    196,877.80x = 295,316.70 × 91,707.40
  4. Step 4: Simplify right side
    196,877.80x = 27,082,726,733.58
  5. Step 5: Solve for x
    x = 27,082,726,733.58/196,877.80
  6. Step 6: Final answer
    x = 137,561.10

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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.