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Finding the Fourth Proportional to 180,216.67, 248,688.96 and 99,639.49

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Solution

The fourth proportional to 180,216.67, 248,688.96 and 99,639.49 is: 137,496.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,216.67 : 248,688.96 = 99,639.49 : x
  2. Step 2: Convert to fraction form
    180,216.67/248,688.96 = 99,639.49/x
  3. Step 3: Cross multiply
    180,216.67x = 248,688.96 × 99,639.49
  4. Step 4: Simplify right side
    180,216.67x = 24,779,241,143.03
  5. Step 5: Solve for x
    x = 24,779,241,143.03/180,216.67
  6. Step 6: Final answer
    x = 137,496.94

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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.