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Finding the Fourth Proportional to 122,859.40, 184,216.20 and 63,810.40

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Solution

The fourth proportional to 122,859.40, 184,216.20 and 63,810.40 is: 95,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,859.40 : 184,216.20 = 63,810.40 : x
  2. Step 2: Convert to fraction form
    122,859.40/184,216.20 = 63,810.40/x
  3. Step 3: Cross multiply
    122,859.40x = 184,216.20 × 63,810.40
  4. Step 4: Simplify right side
    122,859.40x = 11,754,909,408.48
  5. Step 5: Solve for x
    x = 11,754,909,408.48/122,859.40
  6. Step 6: Final answer
    x = 95,677.74

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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.