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Finding the Fourth Proportional to 118,764.24, 163,896.40 and 65,054.24

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Solution

The fourth proportional to 118,764.24, 163,896.40 and 65,054.24 is: 89,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,764.24 : 163,896.40 = 65,054.24 : x
  2. Step 2: Convert to fraction form
    118,764.24/163,896.40 = 65,054.24/x
  3. Step 3: Cross multiply
    118,764.24x = 163,896.40 × 65,054.24
  4. Step 4: Simplify right side
    118,764.24x = 10,662,155,740.74
  5. Step 5: Solve for x
    x = 10,662,155,740.74/118,764.24
  6. Step 6: Final answer
    x = 89,775.81

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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.