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Finding the Fourth Proportional to 110,973.84, 153,143.64 and 63,225.96

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Solution

The fourth proportional to 110,973.84, 153,143.64 and 63,225.96 is: 87,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,973.84 : 153,143.64 = 63,225.96 : x
  2. Step 2: Convert to fraction form
    110,973.84/153,143.64 = 63,225.96/x
  3. Step 3: Cross multiply
    110,973.84x = 153,143.64 × 63,225.96
  4. Step 4: Simplify right side
    110,973.84x = 9,682,653,656.89
  5. Step 5: Solve for x
    x = 9,682,653,656.89/110,973.84
  6. Step 6: Final answer
    x = 87,251.68

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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.