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Finding the Fourth Proportional to 173,110.16, 259,698.90 and 66,486.32

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Solution

The fourth proportional to 173,110.16, 259,698.90 and 66,486.32 is: 99,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,110.16 : 259,698.90 = 66,486.32 : x
  2. Step 2: Convert to fraction form
    173,110.16/259,698.90 = 66,486.32/x
  3. Step 3: Cross multiply
    173,110.16x = 259,698.90 × 66,486.32
  4. Step 4: Simplify right side
    173,110.16x = 17,266,422,870.55
  5. Step 5: Solve for x
    x = 17,266,422,870.55/173,110.16
  6. Step 6: Final answer
    x = 99,742.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.