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Finding the Fourth Proportional to 185,345.63, 255,804.29 and 117,368.81

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Solution

The fourth proportional to 185,345.63, 255,804.29 and 117,368.81 is: 161,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,345.63 : 255,804.29 = 117,368.81 : x
  2. Step 2: Convert to fraction form
    185,345.63/255,804.29 = 117,368.81/x
  3. Step 3: Cross multiply
    185,345.63x = 255,804.29 × 117,368.81
  4. Step 4: Simplify right side
    185,345.63x = 30,023,443,244.33
  5. Step 5: Solve for x
    x = 30,023,443,244.33/185,345.63
  6. Step 6: Final answer
    x = 161,986.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.