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Finding the Fourth Proportional to 72,742.88, 100,361.76 and 44,053.36

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Solution

The fourth proportional to 72,742.88, 100,361.76 and 44,053.36 is: 60,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,742.88 : 100,361.76 = 44,053.36 : x
  2. Step 2: Convert to fraction form
    72,742.88/100,361.76 = 44,053.36/x
  3. Step 3: Cross multiply
    72,742.88x = 100,361.76 × 44,053.36
  4. Step 4: Simplify right side
    72,742.88x = 4,421,272,743.51
  5. Step 5: Solve for x
    x = 4,421,272,743.51/72,742.88
  6. Step 6: Final answer
    x = 60,779.46

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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.