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Finding the Fourth Proportional to 118,333.66, 163,301.79 and 64,619.32

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Solution

The fourth proportional to 118,333.66, 163,301.79 and 64,619.32 is: 89,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,333.66 : 163,301.79 = 64,619.32 : x
  2. Step 2: Convert to fraction form
    118,333.66/163,301.79 = 64,619.32/x
  3. Step 3: Cross multiply
    118,333.66x = 163,301.79 × 64,619.32
  4. Step 4: Simplify right side
    118,333.66x = 10,552,450,624.58
  5. Step 5: Solve for x
    x = 10,552,450,624.58/118,333.66
  6. Step 6: Final answer
    x = 89,175.39

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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.