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Finding the Fourth Proportional to 93,212.97, 139,681.20 and 68,468.01

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Solution

The fourth proportional to 93,212.97, 139,681.20 and 68,468.01 is: 102,600.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,212.97 : 139,681.20 = 68,468.01 : x
  2. Step 2: Convert to fraction form
    93,212.97/139,681.20 = 68,468.01/x
  3. Step 3: Cross multiply
    93,212.97x = 139,681.20 × 68,468.01
  4. Step 4: Simplify right side
    93,212.97x = 9,563,693,798.41
  5. Step 5: Solve for x
    x = 9,563,693,798.41/93,212.97
  6. Step 6: Final answer
    x = 102,600.46

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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.