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Finding the Fourth Proportional to 153,338.67, 211,547.97 and 113,148.90

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Solution

The fourth proportional to 153,338.67, 211,547.97 and 113,148.90 is: 156,101.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,338.67 : 211,547.97 = 113,148.90 : x
  2. Step 2: Convert to fraction form
    153,338.67/211,547.97 = 113,148.90/x
  3. Step 3: Cross multiply
    153,338.67x = 211,547.97 × 113,148.90
  4. Step 4: Simplify right side
    153,338.67x = 23,936,420,102.73
  5. Step 5: Solve for x
    x = 23,936,420,102.73/153,338.67
  6. Step 6: Final answer
    x = 156,101.65

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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.