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Finding the Fourth Proportional to 93,323.70, 139,985.55 and 82,437.30

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Solution

The fourth proportional to 93,323.70, 139,985.55 and 82,437.30 is: 123,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,323.70 : 139,985.55 = 82,437.30 : x
  2. Step 2: Convert to fraction form
    93,323.70/139,985.55 = 82,437.30/x
  3. Step 3: Cross multiply
    93,323.70x = 139,985.55 × 82,437.30
  4. Step 4: Simplify right side
    93,323.70x = 11,540,030,781.02
  5. Step 5: Solve for x
    x = 11,540,030,781.02/93,323.70
  6. Step 6: Final answer
    x = 123,655.95

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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.