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Finding the Fourth Proportional to 127,433, 175,857.74 and 70,844.38

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Solution

The fourth proportional to 127,433, 175,857.74 and 70,844.38 is: 97,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,433 : 175,857.74 = 70,844.38 : x
  2. Step 2: Convert to fraction form
    127,433/175,857.74 = 70,844.38/x
  3. Step 3: Cross multiply
    127,433x = 175,857.74 × 70,844.38
  4. Step 4: Simplify right side
    127,433x = 12,458,532,558.50
  5. Step 5: Solve for x
    x = 12,458,532,558.50/127,433
  6. Step 6: Final answer
    x = 97,765.36

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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.