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Finding the Fourth Proportional to 104,366.16, 143,991 and 59,039.64

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Solution

The fourth proportional to 104,366.16, 143,991 and 59,039.64 is: 81,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,366.16 : 143,991 = 59,039.64 : x
  2. Step 2: Convert to fraction form
    104,366.16/143,991 = 59,039.64/x
  3. Step 3: Cross multiply
    104,366.16x = 143,991 × 59,039.64
  4. Step 4: Simplify right side
    104,366.16x = 8,501,176,803.24
  5. Step 5: Solve for x
    x = 8,501,176,803.24/104,366.16
  6. Step 6: Final answer
    x = 81,455.30

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1.5x scale

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.