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Finding the Fourth Proportional to 223,448.36, 335,281.80 and 105,131.48

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Solution

The fourth proportional to 223,448.36, 335,281.80 and 105,131.48 is: 157,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,448.36 : 335,281.80 = 105,131.48 : x
  2. Step 2: Convert to fraction form
    223,448.36/335,281.80 = 105,131.48/x
  3. Step 3: Cross multiply
    223,448.36x = 335,281.80 × 105,131.48
  4. Step 4: Simplify right side
    223,448.36x = 35,248,671,851.06
  5. Step 5: Solve for x
    x = 35,248,671,851.06/223,448.36
  6. Step 6: Final answer
    x = 157,748.63

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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.