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Finding the Fourth Proportional to 140,892.64, 211,148.80 and 70,822.24

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Solution

The fourth proportional to 140,892.64, 211,148.80 and 70,822.24 is: 106,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,892.64 : 211,148.80 = 70,822.24 : x
  2. Step 2: Convert to fraction form
    140,892.64/211,148.80 = 70,822.24/x
  3. Step 3: Cross multiply
    140,892.64x = 211,148.80 × 70,822.24
  4. Step 4: Simplify right side
    140,892.64x = 14,954,030,989.31
  5. Step 5: Solve for x
    x = 14,954,030,989.31/140,892.64
  6. Step 6: Final answer
    x = 106,137.77

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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.