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Finding the Fourth Proportional to 245,907.36, 368,269.76 and 140,406.56

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Solution

The fourth proportional to 245,907.36, 368,269.76 and 140,406.56 is: 210,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,907.36 : 368,269.76 = 140,406.56 : x
  2. Step 2: Convert to fraction form
    245,907.36/368,269.76 = 140,406.56/x
  3. Step 3: Cross multiply
    245,907.36x = 368,269.76 × 140,406.56
  4. Step 4: Simplify right side
    245,907.36x = 51,707,490,153.63
  5. Step 5: Solve for x
    x = 51,707,490,153.63/245,907.36
  6. Step 6: Final answer
    x = 210,272.23

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1.5x scale

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.