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Finding the Fourth Proportional to 93,271.30, 139,855.65 and 63,722.50

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Solution

The fourth proportional to 93,271.30, 139,855.65 and 63,722.50 is: 95,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,271.30 : 139,855.65 = 63,722.50 : x
  2. Step 2: Convert to fraction form
    93,271.30/139,855.65 = 63,722.50/x
  3. Step 3: Cross multiply
    93,271.30x = 139,855.65 × 63,722.50
  4. Step 4: Simplify right side
    93,271.30x = 8,911,951,657.13
  5. Step 5: Solve for x
    x = 8,911,951,657.13/93,271.30
  6. Step 6: Final answer
    x = 95,548.70

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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.