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Finding the Fourth Proportional to 108,659.13, 149,950.14 and 63,368.52

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Solution

The fourth proportional to 108,659.13, 149,950.14 and 63,368.52 is: 87,448.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,659.13 : 149,950.14 = 63,368.52 : x
  2. Step 2: Convert to fraction form
    108,659.13/149,950.14 = 63,368.52/x
  3. Step 3: Cross multiply
    108,659.13x = 149,950.14 × 63,368.52
  4. Step 4: Simplify right side
    108,659.13x = 9,502,118,445.59
  5. Step 5: Solve for x
    x = 9,502,118,445.59/108,659.13
  6. Step 6: Final answer
    x = 87,448.87

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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.