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Finding the Fourth Proportional to 347,631.04, 479,730.80 and 188,655.04

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Solution

The fourth proportional to 347,631.04, 479,730.80 and 188,655.04 is: 260,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,631.04 : 479,730.80 = 188,655.04 : x
  2. Step 2: Convert to fraction form
    347,631.04/479,730.80 = 188,655.04/x
  3. Step 3: Cross multiply
    347,631.04x = 479,730.80 × 188,655.04
  4. Step 4: Simplify right side
    347,631.04x = 90,503,633,263.23
  5. Step 5: Solve for x
    x = 90,503,633,263.23/347,631.04
  6. Step 6: Final answer
    x = 260,343.94

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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.