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Finding the Fourth Proportional to 120,053.64, 180,193.48 and 60,931.76

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Solution

The fourth proportional to 120,053.64, 180,193.48 and 60,931.76 is: 91,455.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,053.64 : 180,193.48 = 60,931.76 : x
  2. Step 2: Convert to fraction form
    120,053.64/180,193.48 = 60,931.76/x
  3. Step 3: Cross multiply
    120,053.64x = 180,193.48 × 60,931.76
  4. Step 4: Simplify right side
    120,053.64x = 10,979,505,876.92
  5. Step 5: Solve for x
    x = 10,979,505,876.92/120,053.64
  6. Step 6: Final answer
    x = 91,455.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.