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Finding the Fourth Proportional to 122,487.60, 183,731.40 and 101,751.60

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Solution

The fourth proportional to 122,487.60, 183,731.40 and 101,751.60 is: 152,627.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,487.60 : 183,731.40 = 101,751.60 : x
  2. Step 2: Convert to fraction form
    122,487.60/183,731.40 = 101,751.60/x
  3. Step 3: Cross multiply
    122,487.60x = 183,731.40 × 101,751.60
  4. Step 4: Simplify right side
    122,487.60x = 18,694,963,920.24
  5. Step 5: Solve for x
    x = 18,694,963,920.24/122,487.60
  6. Step 6: Final answer
    x = 152,627.40

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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.