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Finding the Fourth Proportional to 93,425.44, 128,915.76 and 53,144.32

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Solution

The fourth proportional to 93,425.44, 128,915.76 and 53,144.32 is: 73,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,425.44 : 128,915.76 = 53,144.32 : x
  2. Step 2: Convert to fraction form
    93,425.44/128,915.76 = 53,144.32/x
  3. Step 3: Cross multiply
    93,425.44x = 128,915.76 × 53,144.32
  4. Step 4: Simplify right side
    93,425.44x = 6,851,140,402.48
  5. Step 5: Solve for x
    x = 6,851,140,402.48/93,425.44
  6. Step 6: Final answer
    x = 73,332.71

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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.