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Finding the Fourth Proportional to 109,297.35, 150,830.90 and 61,551.51

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Solution

The fourth proportional to 109,297.35, 150,830.90 and 61,551.51 is: 84,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,297.35 : 150,830.90 = 61,551.51 : x
  2. Step 2: Convert to fraction form
    109,297.35/150,830.90 = 61,551.51/x
  3. Step 3: Cross multiply
    109,297.35x = 150,830.90 × 61,551.51
  4. Step 4: Simplify right side
    109,297.35x = 9,283,869,341.90
  5. Step 5: Solve for x
    x = 9,283,869,341.90/109,297.35
  6. Step 6: Final answer
    x = 84,941.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.