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Finding the Fourth Proportional to 248,859.70, 373,289.55 and 91,104.10

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Solution

The fourth proportional to 248,859.70, 373,289.55 and 91,104.10 is: 136,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,859.70 : 373,289.55 = 91,104.10 : x
  2. Step 2: Convert to fraction form
    248,859.70/373,289.55 = 91,104.10/x
  3. Step 3: Cross multiply
    248,859.70x = 373,289.55 × 91,104.10
  4. Step 4: Simplify right side
    248,859.70x = 34,008,208,492.16
  5. Step 5: Solve for x
    x = 34,008,208,492.16/248,859.70
  6. Step 6: Final answer
    x = 136,656.15

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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.