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Finding the Fourth Proportional to 117,728.40, 176,592.60 and 38,823.60

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Solution

The fourth proportional to 117,728.40, 176,592.60 and 38,823.60 is: 58,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,728.40 : 176,592.60 = 38,823.60 : x
  2. Step 2: Convert to fraction form
    117,728.40/176,592.60 = 38,823.60/x
  3. Step 3: Cross multiply
    117,728.40x = 176,592.60 × 38,823.60
  4. Step 4: Simplify right side
    117,728.40x = 6,855,960,465.36
  5. Step 5: Solve for x
    x = 6,855,960,465.36/117,728.40
  6. Step 6: Final answer
    x = 58,235.40

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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.