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Finding the Fourth Proportional to 93,353.13, 128,822.24 and 53,061.30

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Solution

The fourth proportional to 93,353.13, 128,822.24 and 53,061.30 is: 73,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,353.13 : 128,822.24 = 53,061.30 : x
  2. Step 2: Convert to fraction form
    93,353.13/128,822.24 = 53,061.30/x
  3. Step 3: Cross multiply
    93,353.13x = 128,822.24 × 53,061.30
  4. Step 4: Simplify right side
    93,353.13x = 6,835,475,258.01
  5. Step 5: Solve for x
    x = 6,835,475,258.01/93,353.13
  6. Step 6: Final answer
    x = 73,221.70

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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.