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Finding the Fourth Proportional to 153,928.60, 231,038.70 and 94,879.60

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Solution

The fourth proportional to 153,928.60, 231,038.70 and 94,879.60 is: 142,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,928.60 : 231,038.70 = 94,879.60 : x
  2. Step 2: Convert to fraction form
    153,928.60/231,038.70 = 94,879.60/x
  3. Step 3: Cross multiply
    153,928.60x = 231,038.70 × 94,879.60
  4. Step 4: Simplify right side
    153,928.60x = 21,920,859,440.52
  5. Step 5: Solve for x
    x = 21,920,859,440.52/153,928.60
  6. Step 6: Final answer
    x = 142,409.27

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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.