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Finding the Fourth Proportional to 331,756.55, 457,810.47 and 186,558.21

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Solution

The fourth proportional to 331,756.55, 457,810.47 and 186,558.21 is: 257,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,756.55 : 457,810.47 = 186,558.21 : x
  2. Step 2: Convert to fraction form
    331,756.55/457,810.47 = 186,558.21/x
  3. Step 3: Cross multiply
    331,756.55x = 457,810.47 × 186,558.21
  4. Step 4: Simplify right side
    331,756.55x = 85,408,301,802.46
  5. Step 5: Solve for x
    x = 85,408,301,802.46/331,756.55
  6. Step 6: Final answer
    x = 257,442.70

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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.