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Finding the Fourth Proportional to 141,111.80, 211,726.93 and 87,848.32

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Solution

The fourth proportional to 141,111.80, 211,726.93 and 87,848.32 is: 131,809.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,111.80 : 211,726.93 = 87,848.32 : x
  2. Step 2: Convert to fraction form
    141,111.80/211,726.93 = 87,848.32/x
  3. Step 3: Cross multiply
    141,111.80x = 211,726.93 × 87,848.32
  4. Step 4: Simplify right side
    141,111.80x = 18,599,855,099.26
  5. Step 5: Solve for x
    x = 18,599,855,099.26/141,111.80
  6. Step 6: Final answer
    x = 131,809.35

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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.