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Finding the Fourth Proportional to 155,525.64, 214,625.70 and 88,457.64

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Solution

The fourth proportional to 155,525.64, 214,625.70 and 88,457.64 is: 122,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,525.64 : 214,625.70 = 88,457.64 : x
  2. Step 2: Convert to fraction form
    155,525.64/214,625.70 = 88,457.64/x
  3. Step 3: Cross multiply
    155,525.64x = 214,625.70 × 88,457.64
  4. Step 4: Simplify right side
    155,525.64x = 18,985,282,905.35
  5. Step 5: Solve for x
    x = 18,985,282,905.35/155,525.64
  6. Step 6: Final answer
    x = 122,071.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.