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Finding the Fourth Proportional to 171,581.51, 257,368.62 and 46,922.51

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Solution

The fourth proportional to 171,581.51, 257,368.62 and 46,922.51 is: 70,382.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,581.51 : 257,368.62 = 46,922.51 : x
  2. Step 2: Convert to fraction form
    171,581.51/257,368.62 = 46,922.51/x
  3. Step 3: Cross multiply
    171,581.51x = 257,368.62 × 46,922.51
  4. Step 4: Simplify right side
    171,581.51x = 12,076,381,645.64
  5. Step 5: Solve for x
    x = 12,076,381,645.64/171,581.51
  6. Step 6: Final answer
    x = 70,382.77

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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.