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Finding the Fourth Proportional to 141,994.30, 212,810.55 and 75,466.30

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Solution

The fourth proportional to 141,994.30, 212,810.55 and 75,466.30 is: 113,103.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,994.30 : 212,810.55 = 75,466.30 : x
  2. Step 2: Convert to fraction form
    141,994.30/212,810.55 = 75,466.30/x
  3. Step 3: Cross multiply
    141,994.30x = 212,810.55 × 75,466.30
  4. Step 4: Simplify right side
    141,994.30x = 16,060,024,809.47
  5. Step 5: Solve for x
    x = 16,060,024,809.47/141,994.30
  6. Step 6: Final answer
    x = 113,103.31

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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.