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Finding the Fourth Proportional to 96,357.60, 132,979.32 and 53,915.22

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Solution

The fourth proportional to 96,357.60, 132,979.32 and 53,915.22 is: 74,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,357.60 : 132,979.32 = 53,915.22 : x
  2. Step 2: Convert to fraction form
    96,357.60/132,979.32 = 53,915.22/x
  3. Step 3: Cross multiply
    96,357.60x = 132,979.32 × 53,915.22
  4. Step 4: Simplify right side
    96,357.60x = 7,169,609,293.25
  5. Step 5: Solve for x
    x = 7,169,609,293.25/96,357.60
  6. Step 6: Final answer
    x = 74,406.27

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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.