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Finding the Fourth Proportional to 126,708.48, 189,802.68 and 63,339

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Solution

The fourth proportional to 126,708.48, 189,802.68 and 63,339 is: 94,878.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,708.48 : 189,802.68 = 63,339 : x
  2. Step 2: Convert to fraction form
    126,708.48/189,802.68 = 63,339/x
  3. Step 3: Cross multiply
    126,708.48x = 189,802.68 × 63,339
  4. Step 4: Simplify right side
    126,708.48x = 12,021,911,948.52
  5. Step 5: Solve for x
    x = 12,021,911,948.52/126,708.48
  6. Step 6: Final answer
    x = 94,878.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.