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Finding the Fourth Proportional to 162,668.72, 224,482.78 and 91,048.74

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Solution

The fourth proportional to 162,668.72, 224,482.78 and 91,048.74 is: 125,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,668.72 : 224,482.78 = 91,048.74 : x
  2. Step 2: Convert to fraction form
    162,668.72/224,482.78 = 91,048.74/x
  3. Step 3: Cross multiply
    162,668.72x = 224,482.78 × 91,048.74
  4. Step 4: Simplify right side
    162,668.72x = 20,438,874,270.70
  5. Step 5: Solve for x
    x = 20,438,874,270.70/162,668.72
  6. Step 6: Final answer
    x = 125,647.23

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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.