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Finding the Fourth Proportional to 99,044.58, 136,690.86 and 56,594.88

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Solution

The fourth proportional to 99,044.58, 136,690.86 and 56,594.88 is: 78,106.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,044.58 : 136,690.86 = 56,594.88 : x
  2. Step 2: Convert to fraction form
    99,044.58/136,690.86 = 56,594.88/x
  3. Step 3: Cross multiply
    99,044.58x = 136,690.86 × 56,594.88
  4. Step 4: Simplify right side
    99,044.58x = 7,736,002,818.80
  5. Step 5: Solve for x
    x = 7,736,002,818.80/99,044.58
  6. Step 6: Final answer
    x = 78,106.27

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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.