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Finding the Fourth Proportional to 168,933.60, 233,128.80 and 93,484.80

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Solution

The fourth proportional to 168,933.60, 233,128.80 and 93,484.80 is: 129,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,933.60 : 233,128.80 = 93,484.80 : x
  2. Step 2: Convert to fraction form
    168,933.60/233,128.80 = 93,484.80/x
  3. Step 3: Cross multiply
    168,933.60x = 233,128.80 × 93,484.80
  4. Step 4: Simplify right side
    168,933.60x = 21,793,999,242.24
  5. Step 5: Solve for x
    x = 21,793,999,242.24/168,933.60
  6. Step 6: Final answer
    x = 129,009.26

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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.