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Finding the Fourth Proportional to 109,473.80, 151,073.76 and 59,172.80

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Solution

The fourth proportional to 109,473.80, 151,073.76 and 59,172.80 is: 81,658.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,473.80 : 151,073.76 = 59,172.80 : x
  2. Step 2: Convert to fraction form
    109,473.80/151,073.76 = 59,172.80/x
  3. Step 3: Cross multiply
    109,473.80x = 151,073.76 × 59,172.80
  4. Step 4: Simplify right side
    109,473.80x = 8,939,457,985.31
  5. Step 5: Solve for x
    x = 8,939,457,985.31/109,473.80
  6. Step 6: Final answer
    x = 81,658.42

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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.