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Finding the Fourth Proportional to 77,804.80, 116,765.28 and 55,312.48

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Solution

The fourth proportional to 77,804.80, 116,765.28 and 55,312.48 is: 83,010.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,804.80 : 116,765.28 = 55,312.48 : x
  2. Step 2: Convert to fraction form
    77,804.80/116,765.28 = 55,312.48/x
  3. Step 3: Cross multiply
    77,804.80x = 116,765.28 × 55,312.48
  4. Step 4: Simplify right side
    77,804.80x = 6,458,577,214.69
  5. Step 5: Solve for x
    x = 6,458,577,214.69/77,804.80
  6. Step 6: Final answer
    x = 83,010.01

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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.