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Finding the Fourth Proportional to 147,150.72, 220,728.60 and 41,972.40

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Solution

The fourth proportional to 147,150.72, 220,728.60 and 41,972.40 is: 62,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,150.72 : 220,728.60 = 41,972.40 : x
  2. Step 2: Convert to fraction form
    147,150.72/220,728.60 = 41,972.40/x
  3. Step 3: Cross multiply
    147,150.72x = 220,728.60 × 41,972.40
  4. Step 4: Simplify right side
    147,150.72x = 9,264,509,090.64
  5. Step 5: Solve for x
    x = 9,264,509,090.64/147,150.72
  6. Step 6: Final answer
    x = 62,959.32

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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.