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Finding the Fourth Proportional to 211,226.40, 316,256.40 and 164,570.40

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Solution

The fourth proportional to 211,226.40, 316,256.40 and 164,570.40 is: 246,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,226.40 : 316,256.40 = 164,570.40 : x
  2. Step 2: Convert to fraction form
    211,226.40/316,256.40 = 164,570.40/x
  3. Step 3: Cross multiply
    211,226.40x = 316,256.40 × 164,570.40
  4. Step 4: Simplify right side
    211,226.40x = 52,046,442,250.56
  5. Step 5: Solve for x
    x = 52,046,442,250.56/211,226.40
  6. Step 6: Final answer
    x = 246,401.22

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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.