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Finding the Fourth Proportional to 437,555.40, 656,478.70 and 157,094.60

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Solution

The fourth proportional to 437,555.40, 656,478.70 and 157,094.60 is: 235,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,555.40 : 656,478.70 = 157,094.60 : x
  2. Step 2: Convert to fraction form
    437,555.40/656,478.70 = 157,094.60/x
  3. Step 3: Cross multiply
    437,555.40x = 656,478.70 × 157,094.60
  4. Step 4: Simplify right side
    437,555.40x = 103,129,258,785.02
  5. Step 5: Solve for x
    x = 103,129,258,785.02/437,555.40
  6. Step 6: Final answer
    x = 235,694.17

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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.