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Finding the Fourth Proportional to 93,552, 129,105.60 and 53,808

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Solution

The fourth proportional to 93,552, 129,105.60 and 53,808 is: 74,257.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,552 : 129,105.60 = 53,808 : x
  2. Step 2: Convert to fraction form
    93,552/129,105.60 = 53,808/x
  3. Step 3: Cross multiply
    93,552x = 129,105.60 × 53,808
  4. Step 4: Simplify right side
    93,552x = 6,946,914,124.80
  5. Step 5: Solve for x
    x = 6,946,914,124.80/93,552
  6. Step 6: Final answer
    x = 74,257.25

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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.