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Finding the Fourth Proportional to 161,751.10, 242,583.45 and 49,431.10

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Solution

The fourth proportional to 161,751.10, 242,583.45 and 49,431.10 is: 74,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,751.10 : 242,583.45 = 49,431.10 : x
  2. Step 2: Convert to fraction form
    161,751.10/242,583.45 = 49,431.10/x
  3. Step 3: Cross multiply
    161,751.10x = 242,583.45 × 49,431.10
  4. Step 4: Simplify right side
    161,751.10x = 11,991,166,775.30
  5. Step 5: Solve for x
    x = 11,991,166,775.30/161,751.10
  6. Step 6: Final answer
    x = 74,133.45

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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.