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Finding the Fourth Proportional to 292,591.25, 438,887.06 and 70,975.25

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Solution

The fourth proportional to 292,591.25, 438,887.06 and 70,975.25 is: 106,462.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,591.25 : 438,887.06 = 70,975.25 : x
  2. Step 2: Convert to fraction form
    292,591.25/438,887.06 = 70,975.25/x
  3. Step 3: Cross multiply
    292,591.25x = 438,887.06 × 70,975.25
  4. Step 4: Simplify right side
    292,591.25x = 31,150,118,450.39
  5. Step 5: Solve for x
    x = 31,150,118,450.39/292,591.25
  6. Step 6: Final answer
    x = 106,462.92

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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.