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Finding the Fourth Proportional to 288,049.90, 432,074.85 and 101,061.40

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Solution

The fourth proportional to 288,049.90, 432,074.85 and 101,061.40 is: 151,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,049.90 : 432,074.85 = 101,061.40 : x
  2. Step 2: Convert to fraction form
    288,049.90/432,074.85 = 101,061.40/x
  3. Step 3: Cross multiply
    288,049.90x = 432,074.85 × 101,061.40
  4. Step 4: Simplify right side
    288,049.90x = 43,666,089,245.79
  5. Step 5: Solve for x
    x = 43,666,089,245.79/288,049.90
  6. Step 6: Final answer
    x = 151,592.10

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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.