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Finding the Fourth Proportional to 93,256.83, 128,690.40 and 52,970.47

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Solution

The fourth proportional to 93,256.83, 128,690.40 and 52,970.47 is: 73,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,256.83 : 128,690.40 = 52,970.47 : x
  2. Step 2: Convert to fraction form
    93,256.83/128,690.40 = 52,970.47/x
  3. Step 3: Cross multiply
    93,256.83x = 128,690.40 × 52,970.47
  4. Step 4: Simplify right side
    93,256.83x = 6,816,790,972.49
  5. Step 5: Solve for x
    x = 6,816,790,972.49/93,256.83
  6. Step 6: Final answer
    x = 73,096.96

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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.