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Finding the Fourth Proportional to 93,997.40, 129,714.72 and 53,160.89

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Solution

The fourth proportional to 93,997.40, 129,714.72 and 53,160.89 is: 73,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,997.40 : 129,714.72 = 53,160.89 : x
  2. Step 2: Convert to fraction form
    93,997.40/129,714.72 = 53,160.89/x
  3. Step 3: Cross multiply
    93,997.40x = 129,714.72 × 53,160.89
  4. Step 4: Simplify right side
    93,997.40x = 6,895,749,961.30
  5. Step 5: Solve for x
    x = 6,895,749,961.30/93,997.40
  6. Step 6: Final answer
    x = 73,361.07

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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.