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Finding the Fourth Proportional to 141,480, 212,244.84 and 57,236.76

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Solution

The fourth proportional to 141,480, 212,244.84 and 57,236.76 is: 85,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,480 : 212,244.84 = 57,236.76 : x
  2. Step 2: Convert to fraction form
    141,480/212,244.84 = 57,236.76/x
  3. Step 3: Cross multiply
    141,480x = 212,244.84 × 57,236.76
  4. Step 4: Simplify right side
    141,480x = 12,148,206,968.32
  5. Step 5: Solve for x
    x = 12,148,206,968.32/141,480
  6. Step 6: Final answer
    x = 85,865.19

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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.