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Finding the Fourth Proportional to 88,838.40, 133,084.80 and 53,673.60

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Solution

The fourth proportional to 88,838.40, 133,084.80 and 53,673.60 is: 80,406.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,838.40 : 133,084.80 = 53,673.60 : x
  2. Step 2: Convert to fraction form
    88,838.40/133,084.80 = 53,673.60/x
  3. Step 3: Cross multiply
    88,838.40x = 133,084.80 × 53,673.60
  4. Step 4: Simplify right side
    88,838.40x = 7,143,140,321.28
  5. Step 5: Solve for x
    x = 7,143,140,321.28/88,838.40
  6. Step 6: Final answer
    x = 80,406.00

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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.