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Finding the Fourth Proportional to 122,573.80, 183,860.70 and 116,871.40

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Solution

The fourth proportional to 122,573.80, 183,860.70 and 116,871.40 is: 175,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,573.80 : 183,860.70 = 116,871.40 : x
  2. Step 2: Convert to fraction form
    122,573.80/183,860.70 = 116,871.40/x
  3. Step 3: Cross multiply
    122,573.80x = 183,860.70 × 116,871.40
  4. Step 4: Simplify right side
    122,573.80x = 21,488,057,413.98
  5. Step 5: Solve for x
    x = 21,488,057,413.98/122,573.80
  6. Step 6: Final answer
    x = 175,307.10

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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.