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Finding the Fourth Proportional to 98,625.64, 136,103.40 and 53,303.47

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Solution

The fourth proportional to 98,625.64, 136,103.40 and 53,303.47 is: 73,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,625.64 : 136,103.40 = 53,303.47 : x
  2. Step 2: Convert to fraction form
    98,625.64/136,103.40 = 53,303.47/x
  3. Step 3: Cross multiply
    98,625.64x = 136,103.40 × 53,303.47
  4. Step 4: Simplify right side
    98,625.64x = 7,254,783,498.80
  5. Step 5: Solve for x
    x = 7,254,783,498.80/98,625.64
  6. Step 6: Final answer
    x = 73,558.80

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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.