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Finding the Fourth Proportional to 225,668.55, 311,409.93 and 123,674.58

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Solution

The fourth proportional to 225,668.55, 311,409.93 and 123,674.58 is: 170,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,668.55 : 311,409.93 = 123,674.58 : x
  2. Step 2: Convert to fraction form
    225,668.55/311,409.93 = 123,674.58/x
  3. Step 3: Cross multiply
    225,668.55x = 311,409.93 × 123,674.58
  4. Step 4: Simplify right side
    225,668.55x = 38,513,492,300.58
  5. Step 5: Solve for x
    x = 38,513,492,300.58/225,668.55
  6. Step 6: Final answer
    x = 170,663.98

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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.