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Finding the Fourth Proportional to 93,280.83, 128,730.98 and 53,001.41

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Solution

The fourth proportional to 93,280.83, 128,730.98 and 53,001.41 is: 73,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,280.83 : 128,730.98 = 53,001.41 : x
  2. Step 2: Convert to fraction form
    93,280.83/128,730.98 = 53,001.41/x
  3. Step 3: Cross multiply
    93,280.83x = 128,730.98 × 53,001.41
  4. Step 4: Simplify right side
    93,280.83x = 6,822,924,100.23
  5. Step 5: Solve for x
    x = 6,822,924,100.23/93,280.83
  6. Step 6: Final answer
    x = 73,143.91

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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.