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Finding the Fourth Proportional to 93,159.32, 139,309.80 and 69,188.96

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Solution

The fourth proportional to 93,159.32, 139,309.80 and 69,188.96 is: 103,464.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,159.32 : 139,309.80 = 69,188.96 : x
  2. Step 2: Convert to fraction form
    93,159.32/139,309.80 = 69,188.96/x
  3. Step 3: Cross multiply
    93,159.32x = 139,309.80 × 69,188.96
  4. Step 4: Simplify right side
    93,159.32x = 9,638,700,179.81
  5. Step 5: Solve for x
    x = 9,638,700,179.81/93,159.32
  6. Step 6: Final answer
    x = 103,464.69

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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.