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Finding the Fourth Proportional to 545,643.24, 818,512.86 and 166,649.52

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Solution

The fourth proportional to 545,643.24, 818,512.86 and 166,649.52 is: 249,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,643.24 : 818,512.86 = 166,649.52 : x
  2. Step 2: Convert to fraction form
    545,643.24/818,512.86 = 166,649.52/x
  3. Step 3: Cross multiply
    545,643.24x = 818,512.86 × 166,649.52
  4. Step 4: Simplify right side
    545,643.24x = 136,404,775,232.83
  5. Step 5: Solve for x
    x = 136,404,775,232.83/545,643.24
  6. Step 6: Final answer
    x = 249,988.94

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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.