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Finding the Fourth Proportional to 141,191.79, 211,740.71 and 56,930.19

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Solution

The fourth proportional to 141,191.79, 211,740.71 and 56,930.19 is: 85,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,191.79 : 211,740.71 = 56,930.19 : x
  2. Step 2: Convert to fraction form
    141,191.79/211,740.71 = 56,930.19/x
  3. Step 3: Cross multiply
    141,191.79x = 211,740.71 × 56,930.19
  4. Step 4: Simplify right side
    141,191.79x = 12,054,438,566.38
  5. Step 5: Solve for x
    x = 12,054,438,566.38/141,191.79
  6. Step 6: Final answer
    x = 85,376.34

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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.