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Finding the Fourth Proportional to 161,751.90, 242,627.85 and 147,755.10

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Solution

The fourth proportional to 161,751.90, 242,627.85 and 147,755.10 is: 221,632.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,751.90 : 242,627.85 = 147,755.10 : x
  2. Step 2: Convert to fraction form
    161,751.90/242,627.85 = 147,755.10/x
  3. Step 3: Cross multiply
    161,751.90x = 242,627.85 × 147,755.10
  4. Step 4: Simplify right side
    161,751.90x = 35,849,502,239.54
  5. Step 5: Solve for x
    x = 35,849,502,239.54/161,751.90
  6. Step 6: Final answer
    x = 221,632.65

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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.