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Finding the Fourth Proportional to 211,259.01, 291,544.53 and 115,764.87

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Solution

The fourth proportional to 211,259.01, 291,544.53 and 115,764.87 is: 159,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,259.01 : 291,544.53 = 115,764.87 : x
  2. Step 2: Convert to fraction form
    211,259.01/291,544.53 = 115,764.87/x
  3. Step 3: Cross multiply
    211,259.01x = 291,544.53 × 115,764.87
  4. Step 4: Simplify right side
    211,259.01x = 33,750,614,614.66
  5. Step 5: Solve for x
    x = 33,750,614,614.66/211,259.01
  6. Step 6: Final answer
    x = 159,759.41

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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.