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Finding the Fourth Proportional to 88,004.28, 131,978.58 and 46,428.60

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Solution

The fourth proportional to 88,004.28, 131,978.58 and 46,428.60 is: 69,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,004.28 : 131,978.58 = 46,428.60 : x
  2. Step 2: Convert to fraction form
    88,004.28/131,978.58 = 46,428.60/x
  3. Step 3: Cross multiply
    88,004.28x = 131,978.58 × 46,428.60
  4. Step 4: Simplify right side
    88,004.28x = 6,127,580,699.39
  5. Step 5: Solve for x
    x = 6,127,580,699.39/88,004.28
  6. Step 6: Final answer
    x = 69,628.21

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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.