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Finding the Fourth Proportional to 233,483.90, 350,335.20 and 121,290.80

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Solution

The fourth proportional to 233,483.90, 350,335.20 and 121,290.80 is: 181,993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,483.90 : 350,335.20 = 121,290.80 : x
  2. Step 2: Convert to fraction form
    233,483.90/350,335.20 = 121,290.80/x
  3. Step 3: Cross multiply
    233,483.90x = 350,335.20 × 121,290.80
  4. Step 4: Simplify right side
    233,483.90x = 42,492,436,676.16
  5. Step 5: Solve for x
    x = 42,492,436,676.16/233,483.90
  6. Step 6: Final answer
    x = 181,993.01

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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.