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Finding the Fourth Proportional to 141,296, 212,041.20 and 58,190

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Solution

The fourth proportional to 141,296, 212,041.20 and 58,190 is: 87,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,296 : 212,041.20 = 58,190 : x
  2. Step 2: Convert to fraction form
    141,296/212,041.20 = 58,190/x
  3. Step 3: Cross multiply
    141,296x = 212,041.20 × 58,190
  4. Step 4: Simplify right side
    141,296x = 12,338,677,428
  5. Step 5: Solve for x
    x = 12,338,677,428/141,296
  6. Step 6: Final answer
    x = 87,325.03

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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.