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Finding the Fourth Proportional to 108,677.58, 149,971.95 and 63,365.58

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Solution

The fourth proportional to 108,677.58, 149,971.95 and 63,365.58 is: 87,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,677.58 : 149,971.95 = 63,365.58 : x
  2. Step 2: Convert to fraction form
    108,677.58/149,971.95 = 63,365.58/x
  3. Step 3: Cross multiply
    108,677.58x = 149,971.95 × 63,365.58
  4. Step 4: Simplify right side
    108,677.58x = 9,503,059,595.48
  5. Step 5: Solve for x
    x = 9,503,059,595.48/108,677.58
  6. Step 6: Final answer
    x = 87,442.69

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1.5x scale

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.