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Finding the Fourth Proportional to 124,486.60, 171,775.29 and 70,770.46

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Solution

The fourth proportional to 124,486.60, 171,775.29 and 70,770.46 is: 97,654.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,486.60 : 171,775.29 = 70,770.46 : x
  2. Step 2: Convert to fraction form
    124,486.60/171,775.29 = 70,770.46/x
  3. Step 3: Cross multiply
    124,486.60x = 171,775.29 × 70,770.46
  4. Step 4: Simplify right side
    124,486.60x = 12,156,616,289.93
  5. Step 5: Solve for x
    x = 12,156,616,289.93/124,486.60
  6. Step 6: Final answer
    x = 97,654.01

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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.