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Finding the Fourth Proportional to 448,469.40, 672,706.50 and 116,045.40

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Solution

The fourth proportional to 448,469.40, 672,706.50 and 116,045.40 is: 174,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,469.40 : 672,706.50 = 116,045.40 : x
  2. Step 2: Convert to fraction form
    448,469.40/672,706.50 = 116,045.40/x
  3. Step 3: Cross multiply
    448,469.40x = 672,706.50 × 116,045.40
  4. Step 4: Simplify right side
    448,469.40x = 78,064,494,875.10
  5. Step 5: Solve for x
    x = 78,064,494,875.10/448,469.40
  6. Step 6: Final answer
    x = 174,068.72

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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.