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Finding the Fourth Proportional to 108,712.94, 150,030.95 and 62,774.52

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Solution

The fourth proportional to 108,712.94, 150,030.95 and 62,774.52 is: 86,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,712.94 : 150,030.95 = 62,774.52 : x
  2. Step 2: Convert to fraction form
    108,712.94/150,030.95 = 62,774.52/x
  3. Step 3: Cross multiply
    108,712.94x = 150,030.95 × 62,774.52
  4. Step 4: Simplify right side
    108,712.94x = 9,418,120,871.39
  5. Step 5: Solve for x
    x = 9,418,120,871.39/108,712.94
  6. Step 6: Final answer
    x = 86,632.93

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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.