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Finding the Fourth Proportional to 114,411.64, 157,880.10 and 63,423.88

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Solution

The fourth proportional to 114,411.64, 157,880.10 and 63,423.88 is: 87,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,411.64 : 157,880.10 = 63,423.88 : x
  2. Step 2: Convert to fraction form
    114,411.64/157,880.10 = 63,423.88/x
  3. Step 3: Cross multiply
    114,411.64x = 157,880.10 × 63,423.88
  4. Step 4: Simplify right side
    114,411.64x = 10,013,368,516.79
  5. Step 5: Solve for x
    x = 10,013,368,516.79/114,411.64
  6. Step 6: Final answer
    x = 87,520.54

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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.