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Finding the Fourth Proportional to 228,924.16, 315,915.32 and 126,965.17

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Solution

The fourth proportional to 228,924.16, 315,915.32 and 126,965.17 is: 175,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,924.16 : 315,915.32 = 126,965.17 : x
  2. Step 2: Convert to fraction form
    228,924.16/315,915.32 = 126,965.17/x
  3. Step 3: Cross multiply
    228,924.16x = 315,915.32 × 126,965.17
  4. Step 4: Simplify right side
    228,924.16x = 40,110,243,021.71
  5. Step 5: Solve for x
    x = 40,110,243,021.71/228,924.16
  6. Step 6: Final answer
    x = 175,211.93

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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.