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Finding the Fourth Proportional to 123,735.54, 170,752.65 and 70,019.58

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Solution

The fourth proportional to 123,735.54, 170,752.65 and 70,019.58 is: 96,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,735.54 : 170,752.65 = 70,019.58 : x
  2. Step 2: Convert to fraction form
    123,735.54/170,752.65 = 70,019.58/x
  3. Step 3: Cross multiply
    123,735.54x = 170,752.65 × 70,019.58
  4. Step 4: Simplify right side
    123,735.54x = 11,956,028,836.89
  5. Step 5: Solve for x
    x = 11,956,028,836.89/123,735.54
  6. Step 6: Final answer
    x = 96,625.67

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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.