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Finding the Fourth Proportional to 69,459.60, 104,043.60 and 57,795.60

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Solution

The fourth proportional to 69,459.60, 104,043.60 and 57,795.60 is: 86,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,459.60 : 104,043.60 = 57,795.60 : x
  2. Step 2: Convert to fraction form
    69,459.60/104,043.60 = 57,795.60/x
  3. Step 3: Cross multiply
    69,459.60x = 104,043.60 × 57,795.60
  4. Step 4: Simplify right side
    69,459.60x = 6,013,262,288.16
  5. Step 5: Solve for x
    x = 6,013,262,288.16/69,459.60
  6. Step 6: Final answer
    x = 86,572.08

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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.