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Finding the Fourth Proportional to 240,746.21, 361,110.68 and 90,980.45

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Solution

The fourth proportional to 240,746.21, 361,110.68 and 90,980.45 is: 136,467.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,746.21 : 361,110.68 = 90,980.45 : x
  2. Step 2: Convert to fraction form
    240,746.21/361,110.68 = 90,980.45/x
  3. Step 3: Cross multiply
    240,746.21x = 361,110.68 × 90,980.45
  4. Step 4: Simplify right side
    240,746.21x = 32,854,011,711.30
  5. Step 5: Solve for x
    x = 32,854,011,711.30/240,746.21
  6. Step 6: Final answer
    x = 136,467.41

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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.