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Finding the Fourth Proportional to 93,432.10, 139,820.10 and 63,907.60

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Solution

The fourth proportional to 93,432.10, 139,820.10 and 63,907.60 is: 95,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.10 : 139,820.10 = 63,907.60 : x
  2. Step 2: Convert to fraction form
    93,432.10/139,820.10 = 63,907.60/x
  3. Step 3: Cross multiply
    93,432.10x = 139,820.10 × 63,907.60
  4. Step 4: Simplify right side
    93,432.10x = 8,935,567,022.76
  5. Step 5: Solve for x
    x = 8,935,567,022.76/93,432.10
  6. Step 6: Final answer
    x = 95,637.01

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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.