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Finding the Fourth Proportional to 110,485.60, 165,814.80 and 51,328.60

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Solution

The fourth proportional to 110,485.60, 165,814.80 and 51,328.60 is: 77,033.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,485.60 : 165,814.80 = 51,328.60 : x
  2. Step 2: Convert to fraction form
    110,485.60/165,814.80 = 51,328.60/x
  3. Step 3: Cross multiply
    110,485.60x = 165,814.80 × 51,328.60
  4. Step 4: Simplify right side
    110,485.60x = 8,511,041,543.28
  5. Step 5: Solve for x
    x = 8,511,041,543.28/110,485.60
  6. Step 6: Final answer
    x = 77,033.04

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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.