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Finding the Fourth Proportional to 161,768.40, 242,652.60 and 155,547.60

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Solution

The fourth proportional to 161,768.40, 242,652.60 and 155,547.60 is: 233,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,768.40 : 242,652.60 = 155,547.60 : x
  2. Step 2: Convert to fraction form
    161,768.40/242,652.60 = 155,547.60/x
  3. Step 3: Cross multiply
    161,768.40x = 242,652.60 × 155,547.60
  4. Step 4: Simplify right side
    161,768.40x = 37,744,029,563.76
  5. Step 5: Solve for x
    x = 37,744,029,563.76/161,768.40
  6. Step 6: Final answer
    x = 233,321.40

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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.