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Finding the Fourth Proportional to 228,529.07, 315,369.28 and 127,927.07

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Solution

The fourth proportional to 228,529.07, 315,369.28 and 127,927.07 is: 176,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,529.07 : 315,369.28 = 127,927.07 : x
  2. Step 2: Convert to fraction form
    228,529.07/315,369.28 = 127,927.07/x
  3. Step 3: Cross multiply
    228,529.07x = 315,369.28 × 127,927.07
  4. Step 4: Simplify right side
    228,529.07x = 40,344,267,958.41
  5. Step 5: Solve for x
    x = 40,344,267,958.41/228,529.07
  6. Step 6: Final answer
    x = 176,538.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.