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Finding the Fourth Proportional to 352,866.12, 528,782.40 and 175,017.96

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Solution

The fourth proportional to 352,866.12, 528,782.40 and 175,017.96 is: 262,270.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,866.12 : 528,782.40 = 175,017.96 : x
  2. Step 2: Convert to fraction form
    352,866.12/528,782.40 = 175,017.96/x
  3. Step 3: Cross multiply
    352,866.12x = 528,782.40 × 175,017.96
  4. Step 4: Simplify right side
    352,866.12x = 92,546,416,931.90
  5. Step 5: Solve for x
    x = 92,546,416,931.90/352,866.12
  6. Step 6: Final answer
    x = 262,270.62

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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.