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Finding the Fourth Proportional to 211,607.56, 291,654.76 and 201,642.12

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Solution

The fourth proportional to 211,607.56, 291,654.76 and 201,642.12 is: 277,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,607.56 : 291,654.76 = 201,642.12 : x
  2. Step 2: Convert to fraction form
    211,607.56/291,654.76 = 201,642.12/x
  3. Step 3: Cross multiply
    211,607.56x = 291,654.76 × 201,642.12
  4. Step 4: Simplify right side
    211,607.56x = 58,809,884,114.49
  5. Step 5: Solve for x
    x = 58,809,884,114.49/211,607.56
  6. Step 6: Final answer
    x = 277,919.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.