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Finding the Fourth Proportional to 303,508.53, 455,222.84 and 93,128.85

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Solution

The fourth proportional to 303,508.53, 455,222.84 and 93,128.85 is: 139,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,508.53 : 455,222.84 = 93,128.85 : x
  2. Step 2: Convert to fraction form
    303,508.53/455,222.84 = 93,128.85/x
  3. Step 3: Cross multiply
    303,508.53x = 455,222.84 × 93,128.85
  4. Step 4: Simplify right side
    303,508.53x = 42,394,379,117.29
  5. Step 5: Solve for x
    x = 42,394,379,117.29/303,508.53
  6. Step 6: Final answer
    x = 139,681.01

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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.