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Finding the Fourth Proportional to 73,853.10, 110,779.65 and 66,710.70

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Solution

The fourth proportional to 73,853.10, 110,779.65 and 66,710.70 is: 100,066.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,853.10 : 110,779.65 = 66,710.70 : x
  2. Step 2: Convert to fraction form
    73,853.10/110,779.65 = 66,710.70/x
  3. Step 3: Cross multiply
    73,853.10x = 110,779.65 × 66,710.70
  4. Step 4: Simplify right side
    73,853.10x = 7,390,187,997.26
  5. Step 5: Solve for x
    x = 7,390,187,997.26/73,853.10
  6. Step 6: Final answer
    x = 100,066.05

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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.