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Finding the Fourth Proportional to 78,596.70, 108,560.88 and 57,052.08

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Solution

The fourth proportional to 78,596.70, 108,560.88 and 57,052.08 is: 78,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,596.70 : 108,560.88 = 57,052.08 : x
  2. Step 2: Convert to fraction form
    78,596.70/108,560.88 = 57,052.08/x
  3. Step 3: Cross multiply
    78,596.70x = 108,560.88 × 57,052.08
  4. Step 4: Simplify right side
    78,596.70x = 6,193,624,010.63
  5. Step 5: Solve for x
    x = 6,193,624,010.63/78,596.70
  6. Step 6: Final answer
    x = 78,802.60

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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.