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Finding the Fourth Proportional to 245,806.88, 368,853.42 and 103,643.24

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Solution

The fourth proportional to 245,806.88, 368,853.42 and 103,643.24 is: 155,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,806.88 : 368,853.42 = 103,643.24 : x
  2. Step 2: Convert to fraction form
    245,806.88/368,853.42 = 103,643.24/x
  3. Step 3: Cross multiply
    245,806.88x = 368,853.42 × 103,643.24
  4. Step 4: Simplify right side
    245,806.88x = 38,229,163,533.88
  5. Step 5: Solve for x
    x = 38,229,163,533.88/245,806.88
  6. Step 6: Final answer
    x = 155,525.20

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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.