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Finding the Fourth Proportional to 285,756.54, 428,334.72 and 96,151.08

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Solution

The fourth proportional to 285,756.54, 428,334.72 and 96,151.08 is: 144,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,756.54 : 428,334.72 = 96,151.08 : x
  2. Step 2: Convert to fraction form
    285,756.54/428,334.72 = 96,151.08/x
  3. Step 3: Cross multiply
    285,756.54x = 428,334.72 × 96,151.08
  4. Step 4: Simplify right side
    285,756.54x = 41,184,845,929.50
  5. Step 5: Solve for x
    x = 41,184,845,929.50/285,756.54
  6. Step 6: Final answer
    x = 144,125.65

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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.