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Finding the Fourth Proportional to 368,941.92, 553,357.80 and 102,674.67

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Solution

The fourth proportional to 368,941.92, 553,357.80 and 102,674.67 is: 153,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,941.92 : 553,357.80 = 102,674.67 : x
  2. Step 2: Convert to fraction form
    368,941.92/553,357.80 = 102,674.67/x
  3. Step 3: Cross multiply
    368,941.92x = 553,357.80 × 102,674.67
  4. Step 4: Simplify right side
    368,941.92x = 56,815,829,506.93
  5. Step 5: Solve for x
    x = 56,815,829,506.93/368,941.92
  6. Step 6: Final answer
    x = 153,996.68

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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.