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Finding the Fourth Proportional to 93,376, 128,858.88 and 59,842

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Solution

The fourth proportional to 93,376, 128,858.88 and 59,842 is: 82,581.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,376 : 128,858.88 = 59,842 : x
  2. Step 2: Convert to fraction form
    93,376/128,858.88 = 59,842/x
  3. Step 3: Cross multiply
    93,376x = 128,858.88 × 59,842
  4. Step 4: Simplify right side
    93,376x = 7,711,173,096.96
  5. Step 5: Solve for x
    x = 7,711,173,096.96/93,376
  6. Step 6: Final answer
    x = 82,581.96

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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.