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Finding the Fourth Proportional to 115,841.87, 159,814.26 and 70,483.49

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Solution

The fourth proportional to 115,841.87, 159,814.26 and 70,483.49 is: 97,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,841.87 : 159,814.26 = 70,483.49 : x
  2. Step 2: Convert to fraction form
    115,841.87/159,814.26 = 70,483.49/x
  3. Step 3: Cross multiply
    115,841.87x = 159,814.26 × 70,483.49
  4. Step 4: Simplify right side
    115,841.87x = 11,264,265,997.50
  5. Step 5: Solve for x
    x = 11,264,265,997.50/115,841.87
  6. Step 6: Final answer
    x = 97,238.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.