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Finding the Fourth Proportional to 260,872.16, 360,012.48 and 146,155.64

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Solution

The fourth proportional to 260,872.16, 360,012.48 and 146,155.64 is: 201,699.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,872.16 : 360,012.48 = 146,155.64 : x
  2. Step 2: Convert to fraction form
    260,872.16/360,012.48 = 146,155.64/x
  3. Step 3: Cross multiply
    260,872.16x = 360,012.48 × 146,155.64
  4. Step 4: Simplify right side
    260,872.16x = 52,617,854,422.39
  5. Step 5: Solve for x
    x = 52,617,854,422.39/260,872.16
  6. Step 6: Final answer
    x = 201,699.77

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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.