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Finding the Fourth Proportional to 136,877.66, 205,316.48 and 43,383.41

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Solution

The fourth proportional to 136,877.66, 205,316.48 and 43,383.41 is: 65,075.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,877.66 : 205,316.48 = 43,383.41 : x
  2. Step 2: Convert to fraction form
    136,877.66/205,316.48 = 43,383.41/x
  3. Step 3: Cross multiply
    136,877.66x = 205,316.48 × 43,383.41
  4. Step 4: Simplify right side
    136,877.66x = 8,907,329,031.60
  5. Step 5: Solve for x
    x = 8,907,329,031.60/136,877.66
  6. Step 6: Final answer
    x = 65,075.11

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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.