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Finding the Fourth Proportional to 73,180.64, 100,996.80 and 52,779.68

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Solution

The fourth proportional to 73,180.64, 100,996.80 and 52,779.68 is: 72,841.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,180.64 : 100,996.80 = 52,779.68 : x
  2. Step 2: Convert to fraction form
    73,180.64/100,996.80 = 52,779.68/x
  3. Step 3: Cross multiply
    73,180.64x = 100,996.80 × 52,779.68
  4. Step 4: Simplify right side
    73,180.64x = 5,330,578,785.02
  5. Step 5: Solve for x
    x = 5,330,578,785.02/73,180.64
  6. Step 6: Final answer
    x = 72,841.38

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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.