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Finding the Fourth Proportional to 182,187.60, 273,281.40 and 77,125.20

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Solution

The fourth proportional to 182,187.60, 273,281.40 and 77,125.20 is: 115,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,187.60 : 273,281.40 = 77,125.20 : x
  2. Step 2: Convert to fraction form
    182,187.60/273,281.40 = 77,125.20/x
  3. Step 3: Cross multiply
    182,187.60x = 273,281.40 × 77,125.20
  4. Step 4: Simplify right side
    182,187.60x = 21,076,882,631.28
  5. Step 5: Solve for x
    x = 21,076,882,631.28/182,187.60
  6. Step 6: Final answer
    x = 115,687.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.