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Finding the Fourth Proportional to 104,081.85, 143,633.06 and 56,335.08

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Solution

The fourth proportional to 104,081.85, 143,633.06 and 56,335.08 is: 77,742.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,081.85 : 143,633.06 = 56,335.08 : x
  2. Step 2: Convert to fraction form
    104,081.85/143,633.06 = 56,335.08/x
  3. Step 3: Cross multiply
    104,081.85x = 143,633.06 × 56,335.08
  4. Step 4: Simplify right side
    104,081.85x = 8,091,579,925.74
  5. Step 5: Solve for x
    x = 8,091,579,925.74/104,081.85
  6. Step 6: Final answer
    x = 77,742.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.