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Finding the Fourth Proportional to 245,655.80, 367,893.20 and 140,154.92

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Solution

The fourth proportional to 245,655.80, 367,893.20 and 140,154.92 is: 209,895.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,655.80 : 367,893.20 = 140,154.92 : x
  2. Step 2: Convert to fraction form
    245,655.80/367,893.20 = 140,154.92/x
  3. Step 3: Cross multiply
    245,655.80x = 367,893.20 × 140,154.92
  4. Step 4: Simplify right side
    245,655.80x = 51,562,041,313.77
  5. Step 5: Solve for x
    x = 51,562,041,313.77/245,655.80
  6. Step 6: Final answer
    x = 209,895.48

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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.