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Finding the Fourth Proportional to 93,162.32, 128,559.57 and 52,870.60

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Solution

The fourth proportional to 93,162.32, 128,559.57 and 52,870.60 is: 72,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,162.32 : 128,559.57 = 52,870.60 : x
  2. Step 2: Convert to fraction form
    93,162.32/128,559.57 = 52,870.60/x
  3. Step 3: Cross multiply
    93,162.32x = 128,559.57 × 52,870.60
  4. Step 4: Simplify right side
    93,162.32x = 6,797,021,564.08
  5. Step 5: Solve for x
    x = 6,797,021,564.08/93,162.32
  6. Step 6: Final answer
    x = 72,958.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.