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Finding the Fourth Proportional to 108,478.88, 149,595.66 and 84,596.84

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Solution

The fourth proportional to 108,478.88, 149,595.66 and 84,596.84 is: 116,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,478.88 : 149,595.66 = 84,596.84 : x
  2. Step 2: Convert to fraction form
    108,478.88/149,595.66 = 84,596.84/x
  3. Step 3: Cross multiply
    108,478.88x = 149,595.66 × 84,596.84
  4. Step 4: Simplify right side
    108,478.88x = 12,655,320,113.71
  5. Step 5: Solve for x
    x = 12,655,320,113.71/108,478.88
  6. Step 6: Final answer
    x = 116,661.60

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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.