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Finding the Fourth Proportional to 125,646.48, 188,421.48 and 50,740.56

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Solution

The fourth proportional to 125,646.48, 188,421.48 and 50,740.56 is: 76,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,646.48 : 188,421.48 = 50,740.56 : x
  2. Step 2: Convert to fraction form
    125,646.48/188,421.48 = 50,740.56/x
  3. Step 3: Cross multiply
    125,646.48x = 188,421.48 × 50,740.56
  4. Step 4: Simplify right side
    125,646.48x = 9,560,611,411.23
  5. Step 5: Solve for x
    x = 9,560,611,411.23/125,646.48
  6. Step 6: Final answer
    x = 76,091.36

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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.