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Finding the Fourth Proportional to 261,703.60, 392,555.40 and 95,556.40

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Solution

The fourth proportional to 261,703.60, 392,555.40 and 95,556.40 is: 143,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,703.60 : 392,555.40 = 95,556.40 : x
  2. Step 2: Convert to fraction form
    261,703.60/392,555.40 = 95,556.40/x
  3. Step 3: Cross multiply
    261,703.60x = 392,555.40 × 95,556.40
  4. Step 4: Simplify right side
    261,703.60x = 37,511,180,824.56
  5. Step 5: Solve for x
    x = 37,511,180,824.56/261,703.60
  6. Step 6: Final answer
    x = 143,334.60

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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.