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Finding the Fourth Proportional to 437,548.40, 656,468.20 and 157,087.60

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Solution

The fourth proportional to 437,548.40, 656,468.20 and 157,087.60 is: 235,683.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,548.40 : 656,468.20 = 157,087.60 : x
  2. Step 2: Convert to fraction form
    437,548.40/656,468.20 = 157,087.60/x
  3. Step 3: Cross multiply
    437,548.40x = 656,468.20 × 157,087.60
  4. Step 4: Simplify right side
    437,548.40x = 103,123,014,014.32
  5. Step 5: Solve for x
    x = 103,123,014,014.32/437,548.40
  6. Step 6: Final answer
    x = 235,683.67

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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.