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Finding the Fourth Proportional to 247,271.80, 370,907.70 and 134,908.60

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Solution

The fourth proportional to 247,271.80, 370,907.70 and 134,908.60 is: 202,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,271.80 : 370,907.70 = 134,908.60 : x
  2. Step 2: Convert to fraction form
    247,271.80/370,907.70 = 134,908.60/x
  3. Step 3: Cross multiply
    247,271.80x = 370,907.70 × 134,908.60
  4. Step 4: Simplify right side
    247,271.80x = 50,038,638,536.22
  5. Step 5: Solve for x
    x = 50,038,638,536.22/247,271.80
  6. Step 6: Final answer
    x = 202,362.90

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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.