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Finding the Fourth Proportional to 353,992.10, 530,113.35 and 235,019.30

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Solution

The fourth proportional to 353,992.10, 530,113.35 and 235,019.30 is: 351,948.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,992.10 : 530,113.35 = 235,019.30 : x
  2. Step 2: Convert to fraction form
    353,992.10/530,113.35 = 235,019.30/x
  3. Step 3: Cross multiply
    353,992.10x = 530,113.35 × 235,019.30
  4. Step 4: Simplify right side
    353,992.10x = 124,586,868,437.66
  5. Step 5: Solve for x
    x = 124,586,868,437.66/353,992.10
  6. Step 6: Final answer
    x = 351,948.16

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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.