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Finding the Fourth Proportional to 370,362.16, 555,486.34 and 117,609.86

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Solution

The fourth proportional to 370,362.16, 555,486.34 and 117,609.86 is: 176,396.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,362.16 : 555,486.34 = 117,609.86 : x
  2. Step 2: Convert to fraction form
    370,362.16/555,486.34 = 117,609.86/x
  3. Step 3: Cross multiply
    370,362.16x = 555,486.34 × 117,609.86
  4. Step 4: Simplify right side
    370,362.16x = 65,330,670,679.31
  5. Step 5: Solve for x
    x = 65,330,670,679.31/370,362.16
  6. Step 6: Final answer
    x = 176,396.72

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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.