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Finding the Fourth Proportional to 352,049.60, 528,074.40 and 162,509.60

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Solution

The fourth proportional to 352,049.60, 528,074.40 and 162,509.60 is: 243,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,049.60 : 528,074.40 = 162,509.60 : x
  2. Step 2: Convert to fraction form
    352,049.60/528,074.40 = 162,509.60/x
  3. Step 3: Cross multiply
    352,049.60x = 528,074.40 × 162,509.60
  4. Step 4: Simplify right side
    352,049.60x = 85,817,159,514.24
  5. Step 5: Solve for x
    x = 85,817,159,514.24/352,049.60
  6. Step 6: Final answer
    x = 243,764.40

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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.