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Finding the Fourth Proportional to 141,066.15, 211,436.21 and 65,005.68

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Solution

The fourth proportional to 141,066.15, 211,436.21 and 65,005.68 is: 97,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,066.15 : 211,436.21 = 65,005.68 : x
  2. Step 2: Convert to fraction form
    141,066.15/211,436.21 = 65,005.68/x
  3. Step 3: Cross multiply
    141,066.15x = 211,436.21 × 65,005.68
  4. Step 4: Simplify right side
    141,066.15x = 13,744,554,770.19
  5. Step 5: Solve for x
    x = 13,744,554,770.19/141,066.15
  6. Step 6: Final answer
    x = 97,433.40

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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.