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Finding the Fourth Proportional to 370,636.50, 555,968.12 and 104,420.28

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Solution

The fourth proportional to 370,636.50, 555,968.12 and 104,420.28 is: 156,634.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,636.50 : 555,968.12 = 104,420.28 : x
  2. Step 2: Convert to fraction form
    370,636.50/555,968.12 = 104,420.28/x
  3. Step 3: Cross multiply
    370,636.50x = 555,968.12 × 104,420.28
  4. Step 4: Simplify right side
    370,636.50x = 58,054,346,239.37
  5. Step 5: Solve for x
    x = 58,054,346,239.37/370,636.50
  6. Step 6: Final answer
    x = 156,634.19

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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.