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Finding the Fourth Proportional to 308,030.04, 424,922.23 and 194,918.40

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Solution

The fourth proportional to 308,030.04, 424,922.23 and 194,918.40 is: 268,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,030.04 : 424,922.23 = 194,918.40 : x
  2. Step 2: Convert to fraction form
    308,030.04/424,922.23 = 194,918.40/x
  3. Step 3: Cross multiply
    308,030.04x = 424,922.23 × 194,918.40
  4. Step 4: Simplify right side
    308,030.04x = 82,825,161,196.03
  5. Step 5: Solve for x
    x = 82,825,161,196.03/308,030.04
  6. Step 6: Final answer
    x = 268,886.64

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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.