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Finding the Fourth Proportional to 147,032.40, 220,402.80 and 68,008.80

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Solution

The fourth proportional to 147,032.40, 220,402.80 and 68,008.80 is: 101,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,032.40 : 220,402.80 = 68,008.80 : x
  2. Step 2: Convert to fraction form
    147,032.40/220,402.80 = 68,008.80/x
  3. Step 3: Cross multiply
    147,032.40x = 220,402.80 × 68,008.80
  4. Step 4: Simplify right side
    147,032.40x = 14,989,329,944.64
  5. Step 5: Solve for x
    x = 14,989,329,944.64/147,032.40
  6. Step 6: Final answer
    x = 101,945.76

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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.