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Finding the Fourth Proportional to 363,886.83, 545,804.33 and 136,139.13

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Solution

The fourth proportional to 363,886.83, 545,804.33 and 136,139.13 is: 204,199.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,886.83 : 545,804.33 = 136,139.13 : x
  2. Step 2: Convert to fraction form
    363,886.83/545,804.33 = 136,139.13/x
  3. Step 3: Cross multiply
    363,886.83x = 545,804.33 × 136,139.13
  4. Step 4: Simplify right side
    363,886.83x = 74,305,325,955.74
  5. Step 5: Solve for x
    x = 74,305,325,955.74/363,886.83
  6. Step 6: Final answer
    x = 204,199.00

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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.