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Finding the Fourth Proportional to 94,602.40, 141,709.20 and 47,881.60

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Solution

The fourth proportional to 94,602.40, 141,709.20 and 47,881.60 is: 71,724.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,602.40 : 141,709.20 = 47,881.60 : x
  2. Step 2: Convert to fraction form
    94,602.40/141,709.20 = 47,881.60/x
  3. Step 3: Cross multiply
    94,602.40x = 141,709.20 × 47,881.60
  4. Step 4: Simplify right side
    94,602.40x = 6,785,263,230.72
  5. Step 5: Solve for x
    x = 6,785,263,230.72/94,602.40
  6. Step 6: Final answer
    x = 71,724.01

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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.