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Finding the Fourth Proportional to 328,159.69, 492,239.53 and 106,543.69

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Solution

The fourth proportional to 328,159.69, 492,239.53 and 106,543.69 is: 159,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,159.69 : 492,239.53 = 106,543.69 : x
  2. Step 2: Convert to fraction form
    328,159.69/492,239.53 = 106,543.69/x
  3. Step 3: Cross multiply
    328,159.69x = 492,239.53 × 106,543.69
  4. Step 4: Simplify right side
    328,159.69x = 52,445,014,792.65
  5. Step 5: Solve for x
    x = 52,445,014,792.65/328,159.69
  6. Step 6: Final answer
    x = 159,815.53

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1.5x scale

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.