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Finding the Fourth Proportional to 141,030.60, 211,661.10 and 136,422.60

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Solution

The fourth proportional to 141,030.60, 211,661.10 and 136,422.60 is: 204,745.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,030.60 : 211,661.10 = 136,422.60 : x
  2. Step 2: Convert to fraction form
    141,030.60/211,661.10 = 136,422.60/x
  3. Step 3: Cross multiply
    141,030.60x = 211,661.10 × 136,422.60
  4. Step 4: Simplify right side
    141,030.60x = 28,875,357,580.86
  5. Step 5: Solve for x
    x = 28,875,357,580.86/141,030.60
  6. Step 6: Final answer
    x = 204,745.34

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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.