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Finding the Fourth Proportional to 153,745.74, 230,628.33 and 64,987.56

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Solution

The fourth proportional to 153,745.74, 230,628.33 and 64,987.56 is: 97,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,745.74 : 230,628.33 = 64,987.56 : x
  2. Step 2: Convert to fraction form
    153,745.74/230,628.33 = 64,987.56/x
  3. Step 3: Cross multiply
    153,745.74x = 230,628.33 × 64,987.56
  4. Step 4: Simplify right side
    153,745.74x = 14,987,972,433.57
  5. Step 5: Solve for x
    x = 14,987,972,433.57/153,745.74
  6. Step 6: Final answer
    x = 97,485.45

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1.5x scale

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.