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Finding the Fourth Proportional to 238,808.12, 357,916.93 and 120,513.29

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Solution

The fourth proportional to 238,808.12, 357,916.93 and 120,513.29 is: 180,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,808.12 : 357,916.93 = 120,513.29 : x
  2. Step 2: Convert to fraction form
    238,808.12/357,916.93 = 120,513.29/x
  3. Step 3: Cross multiply
    238,808.12x = 357,916.93 × 120,513.29
  4. Step 4: Simplify right side
    238,808.12x = 43,133,744,690.13
  5. Step 5: Solve for x
    x = 43,133,744,690.13/238,808.12
  6. Step 6: Final answer
    x = 180,620.93

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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.