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Finding the Fourth Proportional to 173,051.60, 259,534.20 and 66,412.40

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Solution

The fourth proportional to 173,051.60, 259,534.20 and 66,412.40 is: 99,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,051.60 : 259,534.20 = 66,412.40 : x
  2. Step 2: Convert to fraction form
    173,051.60/259,534.20 = 66,412.40/x
  3. Step 3: Cross multiply
    173,051.60x = 259,534.20 × 66,412.40
  4. Step 4: Simplify right side
    173,051.60x = 17,236,289,104.08
  5. Step 5: Solve for x
    x = 17,236,289,104.08/173,051.60
  6. Step 6: Final answer
    x = 99,602.02

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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.