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Finding the Fourth Proportional to 361,263.52, 498,543.74 and 197,920.77

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Solution

The fourth proportional to 361,263.52, 498,543.74 and 197,920.77 is: 273,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,263.52 : 498,543.74 = 197,920.77 : x
  2. Step 2: Convert to fraction form
    361,263.52/498,543.74 = 197,920.77/x
  3. Step 3: Cross multiply
    361,263.52x = 498,543.74 × 197,920.77
  4. Step 4: Simplify right side
    361,263.52x = 98,672,158,225.89
  5. Step 5: Solve for x
    x = 98,672,158,225.89/361,263.52
  6. Step 6: Final answer
    x = 273,130.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.