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Finding the Fourth Proportional to 160,623, 221,354.17 and 117,615.65

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Solution

The fourth proportional to 160,623, 221,354.17 and 117,615.65 is: 162,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,623 : 221,354.17 = 117,615.65 : x
  2. Step 2: Convert to fraction form
    160,623/221,354.17 = 117,615.65/x
  3. Step 3: Cross multiply
    160,623x = 221,354.17 × 117,615.65
  4. Step 4: Simplify right side
    160,623x = 26,034,713,183.95
  5. Step 5: Solve for x
    x = 26,034,713,183.95/160,623
  6. Step 6: Final answer
    x = 162,085.84

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1.5x scale

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.