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Finding the Fourth Proportional to 93,134.64, 128,550.52 and 57,354.62

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Solution

The fourth proportional to 93,134.64, 128,550.52 and 57,354.62 is: 79,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,134.64 : 128,550.52 = 57,354.62 : x
  2. Step 2: Convert to fraction form
    93,134.64/128,550.52 = 57,354.62/x
  3. Step 3: Cross multiply
    93,134.64x = 128,550.52 × 57,354.62
  4. Step 4: Simplify right side
    93,134.64x = 7,372,966,225.40
  5. Step 5: Solve for x
    x = 7,372,966,225.40/93,134.64
  6. Step 6: Final answer
    x = 79,164.60

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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.