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Finding the Fourth Proportional to 122,885.98, 184,328.80 and 38,653.54

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Solution

The fourth proportional to 122,885.98, 184,328.80 and 38,653.54 is: 57,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,885.98 : 184,328.80 = 38,653.54 : x
  2. Step 2: Convert to fraction form
    122,885.98/184,328.80 = 38,653.54/x
  3. Step 3: Cross multiply
    122,885.98x = 184,328.80 × 38,653.54
  4. Step 4: Simplify right side
    122,885.98x = 7,124,960,643.95
  5. Step 5: Solve for x
    x = 7,124,960,643.95/122,885.98
  6. Step 6: Final answer
    x = 57,980.26

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1.5x scale

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.