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Finding the Fourth Proportional to 122,603.10, 183,904.65 and 63,456.90

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Solution

The fourth proportional to 122,603.10, 183,904.65 and 63,456.90 is: 95,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,603.10 : 183,904.65 = 63,456.90 : x
  2. Step 2: Convert to fraction form
    122,603.10/183,904.65 = 63,456.90/x
  3. Step 3: Cross multiply
    122,603.10x = 183,904.65 × 63,456.90
  4. Step 4: Simplify right side
    122,603.10x = 11,670,018,984.59
  5. Step 5: Solve for x
    x = 11,670,018,984.59/122,603.10
  6. Step 6: Final answer
    x = 95,185.35

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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.