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Finding the Fourth Proportional to 141,856.70, 212,816.19 and 42,024.71

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Solution

The fourth proportional to 141,856.70, 212,816.19 and 42,024.71 is: 63,046.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,856.70 : 212,816.19 = 42,024.71 : x
  2. Step 2: Convert to fraction form
    141,856.70/212,816.19 = 42,024.71/x
  3. Step 3: Cross multiply
    141,856.70x = 212,816.19 × 42,024.71
  4. Step 4: Simplify right side
    141,856.70x = 8,943,537,603.97
  5. Step 5: Solve for x
    x = 8,943,537,603.97/141,856.70
  6. Step 6: Final answer
    x = 63,046.28

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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.