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Finding the Fourth Proportional to 303,307.09, 418,565.25 and 167,341.03

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Solution

The fourth proportional to 303,307.09, 418,565.25 and 167,341.03 is: 230,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,307.09 : 418,565.25 = 167,341.03 : x
  2. Step 2: Convert to fraction form
    303,307.09/418,565.25 = 167,341.03/x
  3. Step 3: Cross multiply
    303,307.09x = 418,565.25 × 167,341.03
  4. Step 4: Simplify right side
    303,307.09x = 70,043,139,010.79
  5. Step 5: Solve for x
    x = 70,043,139,010.79/303,307.09
  6. Step 6: Final answer
    x = 230,931.43

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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.