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Finding the Fourth Proportional to 141,647.66, 212,602.74 and 71,576.18

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Solution

The fourth proportional to 141,647.66, 212,602.74 and 71,576.18 is: 107,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,647.66 : 212,602.74 = 71,576.18 : x
  2. Step 2: Convert to fraction form
    141,647.66/212,602.74 = 71,576.18/x
  3. Step 3: Cross multiply
    141,647.66x = 212,602.74 × 71,576.18
  4. Step 4: Simplify right side
    141,647.66x = 15,217,291,986.73
  5. Step 5: Solve for x
    x = 15,217,291,986.73/141,647.66
  6. Step 6: Final answer
    x = 107,430.59

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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.