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Finding the Fourth Proportional to 99,064.88, 136,756.59 and 62,784.44

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Solution

The fourth proportional to 99,064.88, 136,756.59 and 62,784.44 is: 86,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,064.88 : 136,756.59 = 62,784.44 : x
  2. Step 2: Convert to fraction form
    99,064.88/136,756.59 = 62,784.44/x
  3. Step 3: Cross multiply
    99,064.88x = 136,756.59 × 62,784.44
  4. Step 4: Simplify right side
    99,064.88x = 8,586,185,919.46
  5. Step 5: Solve for x
    x = 8,586,185,919.46/99,064.88
  6. Step 6: Final answer
    x = 86,672.35

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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.