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Finding the Fourth Proportional to 103,201.88, 154,802.98 and 28,323.04

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Solution

The fourth proportional to 103,201.88, 154,802.98 and 28,323.04 is: 42,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,201.88 : 154,802.98 = 28,323.04 : x
  2. Step 2: Convert to fraction form
    103,201.88/154,802.98 = 28,323.04/x
  3. Step 3: Cross multiply
    103,201.88x = 154,802.98 × 28,323.04
  4. Step 4: Simplify right side
    103,201.88x = 4,384,490,994.66
  5. Step 5: Solve for x
    x = 4,384,490,994.66/103,201.88
  6. Step 6: Final answer
    x = 42,484.60

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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.