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Finding the Fourth Proportional to 402,079.52, 603,119.64 and 121,597.04

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Solution

The fourth proportional to 402,079.52, 603,119.64 and 121,597.04 is: 182,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,079.52 : 603,119.64 = 121,597.04 : x
  2. Step 2: Convert to fraction form
    402,079.52/603,119.64 = 121,597.04/x
  3. Step 3: Cross multiply
    402,079.52x = 603,119.64 × 121,597.04
  4. Step 4: Simplify right side
    402,079.52x = 73,337,562,989.87
  5. Step 5: Solve for x
    x = 73,337,562,989.87/402,079.52
  6. Step 6: Final answer
    x = 182,395.67

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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.