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Finding the Fourth Proportional to 110,771.68, 152,870.64 and 63,031.90

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Solution

The fourth proportional to 110,771.68, 152,870.64 and 63,031.90 is: 86,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,771.68 : 152,870.64 = 63,031.90 : x
  2. Step 2: Convert to fraction form
    110,771.68/152,870.64 = 63,031.90/x
  3. Step 3: Cross multiply
    110,771.68x = 152,870.64 × 63,031.90
  4. Step 4: Simplify right side
    110,771.68x = 9,635,726,893.42
  5. Step 5: Solve for x
    x = 9,635,726,893.42/110,771.68
  6. Step 6: Final answer
    x = 86,987.28

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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.