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Finding the Fourth Proportional to 208,339.02, 312,624.36 and 101,724.32

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Solution

The fourth proportional to 208,339.02, 312,624.36 and 101,724.32 is: 152,643.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,339.02 : 312,624.36 = 101,724.32 : x
  2. Step 2: Convert to fraction form
    208,339.02/312,624.36 = 101,724.32/x
  3. Step 3: Cross multiply
    208,339.02x = 312,624.36 × 101,724.32
  4. Step 4: Simplify right side
    208,339.02x = 31,801,501,218.00
  5. Step 5: Solve for x
    x = 31,801,501,218.00/208,339.02
  6. Step 6: Final answer
    x = 152,643.04

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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.