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Finding the Fourth Proportional to 338,673.07, 507,653.97 and 113,955.49

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Solution

The fourth proportional to 338,673.07, 507,653.97 and 113,955.49 is: 170,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,673.07 : 507,653.97 = 113,955.49 : x
  2. Step 2: Convert to fraction form
    338,673.07/507,653.97 = 113,955.49/x
  3. Step 3: Cross multiply
    338,673.07x = 507,653.97 × 113,955.49
  4. Step 4: Simplify right side
    338,673.07x = 57,849,956,901.80
  5. Step 5: Solve for x
    x = 57,849,956,901.80/338,673.07
  6. Step 6: Final answer
    x = 170,813.57

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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.