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Finding the Fourth Proportional to 124,093.86, 186,140.79 and 74,188.23

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Solution

The fourth proportional to 124,093.86, 186,140.79 and 74,188.23 is: 111,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,093.86 : 186,140.79 = 74,188.23 : x
  2. Step 2: Convert to fraction form
    124,093.86/186,140.79 = 74,188.23/x
  3. Step 3: Cross multiply
    124,093.86x = 186,140.79 × 74,188.23
  4. Step 4: Simplify right side
    124,093.86x = 13,809,455,740.90
  5. Step 5: Solve for x
    x = 13,809,455,740.90/124,093.86
  6. Step 6: Final answer
    x = 111,282.35

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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.