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Finding the Fourth Proportional to 141,709.64, 212,418.66 and 62,861

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Solution

The fourth proportional to 141,709.64, 212,418.66 and 62,861 is: 94,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,709.64 : 212,418.66 = 62,861 : x
  2. Step 2: Convert to fraction form
    141,709.64/212,418.66 = 62,861/x
  3. Step 3: Cross multiply
    141,709.64x = 212,418.66 × 62,861
  4. Step 4: Simplify right side
    141,709.64x = 13,352,849,386.26
  5. Step 5: Solve for x
    x = 13,352,849,386.26/141,709.64
  6. Step 6: Final answer
    x = 94,226.82

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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.