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Finding the Fourth Proportional to 117,390.40, 176,085.60 and 47,233.60

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Solution

The fourth proportional to 117,390.40, 176,085.60 and 47,233.60 is: 70,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,390.40 : 176,085.60 = 47,233.60 : x
  2. Step 2: Convert to fraction form
    117,390.40/176,085.60 = 47,233.60/x
  3. Step 3: Cross multiply
    117,390.40x = 176,085.60 × 47,233.60
  4. Step 4: Simplify right side
    117,390.40x = 8,317,156,796.16
  5. Step 5: Solve for x
    x = 8,317,156,796.16/117,390.40
  6. Step 6: Final answer
    x = 70,850.40

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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.