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Finding the Fourth Proportional to 424,851.77, 637,271.41 and 105,003.67

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Solution

The fourth proportional to 424,851.77, 637,271.41 and 105,003.67 is: 157,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,851.77 : 637,271.41 = 105,003.67 : x
  2. Step 2: Convert to fraction form
    424,851.77/637,271.41 = 105,003.67/x
  3. Step 3: Cross multiply
    424,851.77x = 637,271.41 × 105,003.67
  4. Step 4: Simplify right side
    424,851.77x = 66,915,836,836.07
  5. Step 5: Solve for x
    x = 66,915,836,836.07/424,851.77
  6. Step 6: Final answer
    x = 157,503.96

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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.