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Finding the Fourth Proportional to 107,804.79, 161,736.35 and 61,090.47

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Solution

The fourth proportional to 107,804.79, 161,736.35 and 61,090.47 is: 91,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,804.79 : 161,736.35 = 61,090.47 : x
  2. Step 2: Convert to fraction form
    107,804.79/161,736.35 = 61,090.47/x
  3. Step 3: Cross multiply
    107,804.79x = 161,736.35 × 61,090.47
  4. Step 4: Simplify right side
    107,804.79x = 9,880,549,332.13
  5. Step 5: Solve for x
    x = 9,880,549,332.13/107,804.79
  6. Step 6: Final answer
    x = 91,652.23

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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.