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Finding the Fourth Proportional to 64,345.32, 88,835.94 and 50,970.60

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Solution

The fourth proportional to 64,345.32, 88,835.94 and 50,970.60 is: 70,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,345.32 : 88,835.94 = 50,970.60 : x
  2. Step 2: Convert to fraction form
    64,345.32/88,835.94 = 50,970.60/x
  3. Step 3: Cross multiply
    64,345.32x = 88,835.94 × 50,970.60
  4. Step 4: Simplify right side
    64,345.32x = 4,528,021,163.36
  5. Step 5: Solve for x
    x = 4,528,021,163.36/64,345.32
  6. Step 6: Final answer
    x = 70,370.64

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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.