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Finding the Fourth Proportional to 161,744.40, 242,551.80 and 56,509.20

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Solution

The fourth proportional to 161,744.40, 242,551.80 and 56,509.20 is: 84,741.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,744.40 : 242,551.80 = 56,509.20 : x
  2. Step 2: Convert to fraction form
    161,744.40/242,551.80 = 56,509.20/x
  3. Step 3: Cross multiply
    161,744.40x = 242,551.80 × 56,509.20
  4. Step 4: Simplify right side
    161,744.40x = 13,706,408,176.56
  5. Step 5: Solve for x
    x = 13,706,408,176.56/161,744.40
  6. Step 6: Final answer
    x = 84,741.16

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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.