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Finding the Fourth Proportional to 260,073.76, 390,117.93 and 127,060.42

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Solution

The fourth proportional to 260,073.76, 390,117.93 and 127,060.42 is: 190,594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,073.76 : 390,117.93 = 127,060.42 : x
  2. Step 2: Convert to fraction form
    260,073.76/390,117.93 = 127,060.42/x
  3. Step 3: Cross multiply
    260,073.76x = 390,117.93 × 127,060.42
  4. Step 4: Simplify right side
    260,073.76x = 49,568,548,035.33
  5. Step 5: Solve for x
    x = 49,568,548,035.33/260,073.76
  6. Step 6: Final answer
    x = 190,594.19

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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.