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Finding the Fourth Proportional to 94,572.40, 141,858.60 and 28,022.80

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Solution

The fourth proportional to 94,572.40, 141,858.60 and 28,022.80 is: 42,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,572.40 : 141,858.60 = 28,022.80 : x
  2. Step 2: Convert to fraction form
    94,572.40/141,858.60 = 28,022.80/x
  3. Step 3: Cross multiply
    94,572.40x = 141,858.60 × 28,022.80
  4. Step 4: Simplify right side
    94,572.40x = 3,975,275,176.08
  5. Step 5: Solve for x
    x = 3,975,275,176.08/94,572.40
  6. Step 6: Final answer
    x = 42,034.20

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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.