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Finding the Fourth Proportional to 93,282.30, 128,733.05 and 53,002.89

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Solution

The fourth proportional to 93,282.30, 128,733.05 and 53,002.89 is: 73,145.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,282.30 : 128,733.05 = 53,002.89 : x
  2. Step 2: Convert to fraction form
    93,282.30/128,733.05 = 53,002.89/x
  3. Step 3: Cross multiply
    93,282.30x = 128,733.05 × 53,002.89
  4. Step 4: Simplify right side
    93,282.30x = 6,823,223,688.51
  5. Step 5: Solve for x
    x = 6,823,223,688.51/93,282.30
  6. Step 6: Final answer
    x = 73,145.96

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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.