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Finding the Fourth Proportional to 93,432.66, 140,192.72 and 40,835.30

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Solution

The fourth proportional to 93,432.66, 140,192.72 and 40,835.30 is: 61,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.66 : 140,192.72 = 40,835.30 : x
  2. Step 2: Convert to fraction form
    93,432.66/140,192.72 = 40,835.30/x
  3. Step 3: Cross multiply
    93,432.66x = 140,192.72 × 40,835.30
  4. Step 4: Simplify right side
    93,432.66x = 5,724,811,779.02
  5. Step 5: Solve for x
    x = 5,724,811,779.02/93,432.66
  6. Step 6: Final answer
    x = 61,272.06

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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.