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Finding the Fourth Proportional to 171,457.20, 257,186.70 and 46,798.20

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Solution

The fourth proportional to 171,457.20, 257,186.70 and 46,798.20 is: 70,197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,457.20 : 257,186.70 = 46,798.20 : x
  2. Step 2: Convert to fraction form
    171,457.20/257,186.70 = 46,798.20/x
  3. Step 3: Cross multiply
    171,457.20x = 257,186.70 × 46,798.20
  4. Step 4: Simplify right side
    171,457.20x = 12,035,874,623.94
  5. Step 5: Solve for x
    x = 12,035,874,623.94/171,457.20
  6. Step 6: Final answer
    x = 70,197.55

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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.