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Finding the Fourth Proportional to 117,254.67, 161,811.03 and 63,541

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Solution

The fourth proportional to 117,254.67, 161,811.03 and 63,541 is: 87,686.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,254.67 : 161,811.03 = 63,541 : x
  2. Step 2: Convert to fraction form
    117,254.67/161,811.03 = 63,541/x
  3. Step 3: Cross multiply
    117,254.67x = 161,811.03 × 63,541
  4. Step 4: Simplify right side
    117,254.67x = 10,281,634,657.23
  5. Step 5: Solve for x
    x = 10,281,634,657.23/117,254.67
  6. Step 6: Final answer
    x = 87,686.36

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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.