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Finding the Fourth Proportional to 472,344.98, 708,385.72 and 130,706.12

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Solution

The fourth proportional to 472,344.98, 708,385.72 and 130,706.12 is: 196,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,344.98 : 708,385.72 = 130,706.12 : x
  2. Step 2: Convert to fraction form
    472,344.98/708,385.72 = 130,706.12/x
  3. Step 3: Cross multiply
    472,344.98x = 708,385.72 × 130,706.12
  4. Step 4: Simplify right side
    472,344.98x = 92,590,348,924.61
  5. Step 5: Solve for x
    x = 92,590,348,924.61/472,344.98
  6. Step 6: Final answer
    x = 196,022.72

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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.