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Finding the Fourth Proportional to 218,567.52, 301,656.48 and 157,516.20

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Solution

The fourth proportional to 218,567.52, 301,656.48 and 157,516.20 is: 217,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,567.52 : 301,656.48 = 157,516.20 : x
  2. Step 2: Convert to fraction form
    218,567.52/301,656.48 = 157,516.20/x
  3. Step 3: Cross multiply
    218,567.52x = 301,656.48 × 157,516.20
  4. Step 4: Simplify right side
    218,567.52x = 47,515,782,434.98
  5. Step 5: Solve for x
    x = 47,515,782,434.98/218,567.52
  6. Step 6: Final answer
    x = 217,396.36

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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.