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Finding the Fourth Proportional to 141,878.76, 212,852.70 and 43,382.76

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Solution

The fourth proportional to 141,878.76, 212,852.70 and 43,382.76 is: 65,084.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,878.76 : 212,852.70 = 43,382.76 : x
  2. Step 2: Convert to fraction form
    141,878.76/212,852.70 = 43,382.76/x
  3. Step 3: Cross multiply
    141,878.76x = 212,852.70 × 43,382.76
  4. Step 4: Simplify right side
    141,878.76x = 9,234,137,599.45
  5. Step 5: Solve for x
    x = 9,234,137,599.45/141,878.76
  6. Step 6: Final answer
    x = 65,084.71

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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.