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Finding the Fourth Proportional to 141,466.14, 212,292.70 and 66,607.70

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Solution

The fourth proportional to 141,466.14, 212,292.70 and 66,607.70 is: 99,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,466.14 : 212,292.70 = 66,607.70 : x
  2. Step 2: Convert to fraction form
    141,466.14/212,292.70 = 66,607.70/x
  3. Step 3: Cross multiply
    141,466.14x = 212,292.70 × 66,607.70
  4. Step 4: Simplify right side
    141,466.14x = 14,140,328,473.79
  5. Step 5: Solve for x
    x = 14,140,328,473.79/141,466.14
  6. Step 6: Final answer
    x = 99,955.57

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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.