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Finding the Fourth Proportional to 100,792.65, 151,152.95 and 33,312.20

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Solution

The fourth proportional to 100,792.65, 151,152.95 and 33,312.20 is: 49,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,792.65 : 151,152.95 = 33,312.20 : x
  2. Step 2: Convert to fraction form
    100,792.65/151,152.95 = 33,312.20/x
  3. Step 3: Cross multiply
    100,792.65x = 151,152.95 × 33,312.20
  4. Step 4: Simplify right side
    100,792.65x = 5,035,237,300.99
  5. Step 5: Solve for x
    x = 5,035,237,300.99/100,792.65
  6. Step 6: Final answer
    x = 49,956.39

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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.