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Finding the Fourth Proportional to 93,287.88, 128,737.28 and 53,001.70

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Solution

The fourth proportional to 93,287.88, 128,737.28 and 53,001.70 is: 73,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.88 : 128,737.28 = 53,001.70 : x
  2. Step 2: Convert to fraction form
    93,287.88/128,737.28 = 53,001.70/x
  3. Step 3: Cross multiply
    93,287.88x = 128,737.28 × 53,001.70
  4. Step 4: Simplify right side
    93,287.88x = 6,823,294,504.04
  5. Step 5: Solve for x
    x = 6,823,294,504.04/93,287.88
  6. Step 6: Final answer
    x = 73,142.35

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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.