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Finding the Fourth Proportional to 97,451.25, 134,482.80 and 52,739.25

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Solution

The fourth proportional to 97,451.25, 134,482.80 and 52,739.25 is: 72,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,451.25 : 134,482.80 = 52,739.25 : x
  2. Step 2: Convert to fraction form
    97,451.25/134,482.80 = 52,739.25/x
  3. Step 3: Cross multiply
    97,451.25x = 134,482.80 × 52,739.25
  4. Step 4: Simplify right side
    97,451.25x = 7,092,522,009.90
  5. Step 5: Solve for x
    x = 7,092,522,009.90/97,451.25
  6. Step 6: Final answer
    x = 72,780.21

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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.