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Finding the Fourth Proportional to 374,597.28, 561,896.40 and 152,981.28

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Solution

The fourth proportional to 374,597.28, 561,896.40 and 152,981.28 is: 229,472.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,597.28 : 561,896.40 = 152,981.28 : x
  2. Step 2: Convert to fraction form
    374,597.28/561,896.40 = 152,981.28/x
  3. Step 3: Cross multiply
    374,597.28x = 561,896.40 × 152,981.28
  4. Step 4: Simplify right side
    374,597.28x = 85,959,630,499.39
  5. Step 5: Solve for x
    x = 85,959,630,499.39/374,597.28
  6. Step 6: Final answer
    x = 229,472.12

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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.