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Finding the Fourth Proportional to 108,562.51, 162,603.16 and 83,417.47

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Solution

The fourth proportional to 108,562.51, 162,603.16 and 83,417.47 is: 124,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,562.51 : 162,603.16 = 83,417.47 : x
  2. Step 2: Convert to fraction form
    108,562.51/162,603.16 = 83,417.47/x
  3. Step 3: Cross multiply
    108,562.51x = 162,603.16 × 83,417.47
  4. Step 4: Simplify right side
    108,562.51x = 13,563,944,221.21
  5. Step 5: Solve for x
    x = 13,563,944,221.21/108,562.51
  6. Step 6: Final answer
    x = 124,941.33

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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.