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Finding the Fourth Proportional to 260,096.40, 390,144.60 and 176,115.60

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Solution

The fourth proportional to 260,096.40, 390,144.60 and 176,115.60 is: 264,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,096.40 : 390,144.60 = 176,115.60 : x
  2. Step 2: Convert to fraction form
    260,096.40/390,144.60 = 176,115.60/x
  3. Step 3: Cross multiply
    260,096.40x = 390,144.60 × 176,115.60
  4. Step 4: Simplify right side
    260,096.40x = 68,710,550,315.76
  5. Step 5: Solve for x
    x = 68,710,550,315.76/260,096.40
  6. Step 6: Final answer
    x = 264,173.40

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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.