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Finding the Fourth Proportional to 276,700.40, 415,050.60 and 176,973.20

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Solution

The fourth proportional to 276,700.40, 415,050.60 and 176,973.20 is: 265,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,700.40 : 415,050.60 = 176,973.20 : x
  2. Step 2: Convert to fraction form
    276,700.40/415,050.60 = 176,973.20/x
  3. Step 3: Cross multiply
    276,700.40x = 415,050.60 × 176,973.20
  4. Step 4: Simplify right side
    276,700.40x = 73,452,832,843.92
  5. Step 5: Solve for x
    x = 73,452,832,843.92/276,700.40
  6. Step 6: Final answer
    x = 265,459.80

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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.