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Finding the Fourth Proportional to 172,937.63, 257,687.23 and 154,072.71

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Solution

The fourth proportional to 172,937.63, 257,687.23 and 154,072.71 is: 229,577.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,937.63 : 257,687.23 = 154,072.71 : x
  2. Step 2: Convert to fraction form
    172,937.63/257,687.23 = 154,072.71/x
  3. Step 3: Cross multiply
    172,937.63x = 257,687.23 × 154,072.71
  4. Step 4: Simplify right side
    172,937.63x = 39,702,569,088.13
  5. Step 5: Solve for x
    x = 39,702,569,088.13/172,937.63
  6. Step 6: Final answer
    x = 229,577.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.