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Finding the Fourth Proportional to 328,783.87, 492,779.24 and 160,051.28

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Solution

The fourth proportional to 328,783.87, 492,779.24 and 160,051.28 is: 239,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,783.87 : 492,779.24 = 160,051.28 : x
  2. Step 2: Convert to fraction form
    328,783.87/492,779.24 = 160,051.28/x
  3. Step 3: Cross multiply
    328,783.87x = 492,779.24 × 160,051.28
  4. Step 4: Simplify right side
    328,783.87x = 78,869,947,319.17
  5. Step 5: Solve for x
    x = 78,869,947,319.17/328,783.87
  6. Step 6: Final answer
    x = 239,883.87

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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.