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Finding the Fourth Proportional to 119,365.50, 164,725.77 and 65,651.40

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Solution

The fourth proportional to 119,365.50, 164,725.77 and 65,651.40 is: 90,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,365.50 : 164,725.77 = 65,651.40 : x
  2. Step 2: Convert to fraction form
    119,365.50/164,725.77 = 65,651.40/x
  3. Step 3: Cross multiply
    119,365.50x = 164,725.77 × 65,651.40
  4. Step 4: Simplify right side
    119,365.50x = 10,814,477,416.58
  5. Step 5: Solve for x
    x = 10,814,477,416.58/119,365.50
  6. Step 6: Final answer
    x = 90,599.69

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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.