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Finding the Fourth Proportional to 273,708.68, 377,703.54 and 154,469

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Solution

The fourth proportional to 273,708.68, 377,703.54 and 154,469 is: 213,159.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,708.68 : 377,703.54 = 154,469 : x
  2. Step 2: Convert to fraction form
    273,708.68/377,703.54 = 154,469/x
  3. Step 3: Cross multiply
    273,708.68x = 377,703.54 × 154,469
  4. Step 4: Simplify right side
    273,708.68x = 58,343,488,120.26
  5. Step 5: Solve for x
    x = 58,343,488,120.26/273,708.68
  6. Step 6: Final answer
    x = 213,159.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.