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Finding the Fourth Proportional to 93,323.20, 139,984.80 and 34,139.20

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Solution

The fourth proportional to 93,323.20, 139,984.80 and 34,139.20 is: 51,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,323.20 : 139,984.80 = 34,139.20 : x
  2. Step 2: Convert to fraction form
    93,323.20/139,984.80 = 34,139.20/x
  3. Step 3: Cross multiply
    93,323.20x = 139,984.80 × 34,139.20
  4. Step 4: Simplify right side
    93,323.20x = 4,778,969,084.16
  5. Step 5: Solve for x
    x = 4,778,969,084.16/93,323.20
  6. Step 6: Final answer
    x = 51,208.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.