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Finding the Fourth Proportional to 424,124.16, 636,188.96 and 124,603.52

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Solution

The fourth proportional to 424,124.16, 636,188.96 and 124,603.52 is: 186,906.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,124.16 : 636,188.96 = 124,603.52 : x
  2. Step 2: Convert to fraction form
    424,124.16/636,188.96 = 124,603.52/x
  3. Step 3: Cross multiply
    424,124.16x = 636,188.96 × 124,603.52
  4. Step 4: Simplify right side
    424,124.16x = 79,271,383,801.14
  5. Step 5: Solve for x
    x = 79,271,383,801.14/424,124.16
  6. Step 6: Final answer
    x = 186,906.08

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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.