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Finding the Fourth Proportional to 108,503.55, 149,730.53 and 63,182.84

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Solution

The fourth proportional to 108,503.55, 149,730.53 and 63,182.84 is: 87,189.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.55 : 149,730.53 = 63,182.84 : x
  2. Step 2: Convert to fraction form
    108,503.55/149,730.53 = 63,182.84/x
  3. Step 3: Cross multiply
    108,503.55x = 149,730.53 × 63,182.84
  4. Step 4: Simplify right side
    108,503.55x = 9,460,399,055.54
  5. Step 5: Solve for x
    x = 9,460,399,055.54/108,503.55
  6. Step 6: Final answer
    x = 87,189.77

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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.