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Finding the Fourth Proportional to 108,077.12, 149,073.60 and 93,905.60

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Solution

The fourth proportional to 108,077.12, 149,073.60 and 93,905.60 is: 129,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,077.12 : 149,073.60 = 93,905.60 : x
  2. Step 2: Convert to fraction form
    108,077.12/149,073.60 = 93,905.60/x
  3. Step 3: Cross multiply
    108,077.12x = 149,073.60 × 93,905.60
  4. Step 4: Simplify right side
    108,077.12x = 13,998,845,852.16
  5. Step 5: Solve for x
    x = 13,998,845,852.16/108,077.12
  6. Step 6: Final answer
    x = 129,526.45

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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.