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Finding the Fourth Proportional to 424,847.86, 637,210.29 and 125,313.64

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Solution

The fourth proportional to 424,847.86, 637,210.29 and 125,313.64 is: 187,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,847.86 : 637,210.29 = 125,313.64 : x
  2. Step 2: Convert to fraction form
    424,847.86/637,210.29 = 125,313.64/x
  3. Step 3: Cross multiply
    424,847.86x = 637,210.29 × 125,313.64
  4. Step 4: Simplify right side
    424,847.86x = 79,851,140,885.36
  5. Step 5: Solve for x
    x = 79,851,140,885.36/424,847.86
  6. Step 6: Final answer
    x = 187,952.32

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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.