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Finding the Fourth Proportional to 172,133.76, 237,352.80 and 111,624.96

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Solution

The fourth proportional to 172,133.76, 237,352.80 and 111,624.96 is: 153,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,133.76 : 237,352.80 = 111,624.96 : x
  2. Step 2: Convert to fraction form
    172,133.76/237,352.80 = 111,624.96/x
  3. Step 3: Cross multiply
    172,133.76x = 237,352.80 × 111,624.96
  4. Step 4: Simplify right side
    172,133.76x = 26,494,496,805.89
  5. Step 5: Solve for x
    x = 26,494,496,805.89/172,133.76
  6. Step 6: Final answer
    x = 153,918.07

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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.