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Finding the Fourth Proportional to 136,541.61, 204,790.47 and 57,645.59

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Solution

The fourth proportional to 136,541.61, 204,790.47 and 57,645.59 is: 86,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,541.61 : 204,790.47 = 57,645.59 : x
  2. Step 2: Convert to fraction form
    136,541.61/204,790.47 = 57,645.59/x
  3. Step 3: Cross multiply
    136,541.61x = 204,790.47 × 57,645.59
  4. Step 4: Simplify right side
    136,541.61x = 11,805,266,445.58
  5. Step 5: Solve for x
    x = 11,805,266,445.58/136,541.61
  6. Step 6: Final answer
    x = 86,459.11

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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.