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Finding the Fourth Proportional to 93,425.30, 128,929.74 and 53,144.84

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Solution

The fourth proportional to 93,425.30, 128,929.74 and 53,144.84 is: 73,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,425.30 : 128,929.74 = 53,144.84 : x
  2. Step 2: Convert to fraction form
    93,425.30/128,929.74 = 53,144.84/x
  3. Step 3: Cross multiply
    93,425.30x = 128,929.74 × 53,144.84
  4. Step 4: Simplify right side
    93,425.30x = 6,851,950,403.54
  5. Step 5: Solve for x
    x = 6,851,950,403.54/93,425.30
  6. Step 6: Final answer
    x = 73,341.49

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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.