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Finding the Fourth Proportional to 76,361.54, 105,374.12 and 46,128.96

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Solution

The fourth proportional to 76,361.54, 105,374.12 and 46,128.96 is: 63,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,361.54 : 105,374.12 = 46,128.96 : x
  2. Step 2: Convert to fraction form
    76,361.54/105,374.12 = 46,128.96/x
  3. Step 3: Cross multiply
    76,361.54x = 105,374.12 × 46,128.96
  4. Step 4: Simplify right side
    76,361.54x = 4,860,798,335.87
  5. Step 5: Solve for x
    x = 4,860,798,335.87/76,361.54
  6. Step 6: Final answer
    x = 63,655.06

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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.