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Finding the Fourth Proportional to 118,427.95, 177,584.28 and 39,515.50

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Solution

The fourth proportional to 118,427.95, 177,584.28 and 39,515.50 is: 59,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,427.95 : 177,584.28 = 39,515.50 : x
  2. Step 2: Convert to fraction form
    118,427.95/177,584.28 = 39,515.50/x
  3. Step 3: Cross multiply
    118,427.95x = 177,584.28 × 39,515.50
  4. Step 4: Simplify right side
    118,427.95x = 7,017,331,616.34
  5. Step 5: Solve for x
    x = 7,017,331,616.34/118,427.95
  6. Step 6: Final answer
    x = 59,254.02

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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.