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Finding the Fourth Proportional to 117,347.80, 176,021.70 and 38,464.60

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Solution

The fourth proportional to 117,347.80, 176,021.70 and 38,464.60 is: 57,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,347.80 : 176,021.70 = 38,464.60 : x
  2. Step 2: Convert to fraction form
    117,347.80/176,021.70 = 38,464.60/x
  3. Step 3: Cross multiply
    117,347.80x = 176,021.70 × 38,464.60
  4. Step 4: Simplify right side
    117,347.80x = 6,770,604,281.82
  5. Step 5: Solve for x
    x = 6,770,604,281.82/117,347.80
  6. Step 6: Final answer
    x = 57,696.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.