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Finding the Fourth Proportional to 405,483.52, 608,186.40 and 124,925.44

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Solution

The fourth proportional to 405,483.52, 608,186.40 and 124,925.44 is: 187,376.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,483.52 : 608,186.40 = 124,925.44 : x
  2. Step 2: Convert to fraction form
    405,483.52/608,186.40 = 124,925.44/x
  3. Step 3: Cross multiply
    405,483.52x = 608,186.40 × 124,925.44
  4. Step 4: Simplify right side
    405,483.52x = 75,977,953,622.02
  5. Step 5: Solve for x
    x = 75,977,953,622.02/405,483.52
  6. Step 6: Final answer
    x = 187,376.18

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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.