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Finding the Fourth Proportional to 260,042.94, 390,044.97 and 93,830.94

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Solution

The fourth proportional to 260,042.94, 390,044.97 and 93,830.94 is: 140,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,042.94 : 390,044.97 = 93,830.94 : x
  2. Step 2: Convert to fraction form
    260,042.94/390,044.97 = 93,830.94/x
  3. Step 3: Cross multiply
    260,042.94x = 390,044.97 × 93,830.94
  4. Step 4: Simplify right side
    260,042.94x = 36,598,286,177.37
  5. Step 5: Solve for x
    x = 36,598,286,177.37/260,042.94
  6. Step 6: Final answer
    x = 140,739.40

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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.