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Finding the Fourth Proportional to 208,028.60, 312,042.90 and 176,535.80

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Solution

The fourth proportional to 208,028.60, 312,042.90 and 176,535.80 is: 264,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,028.60 : 312,042.90 = 176,535.80 : x
  2. Step 2: Convert to fraction form
    208,028.60/312,042.90 = 176,535.80/x
  3. Step 3: Cross multiply
    208,028.60x = 312,042.90 × 176,535.80
  4. Step 4: Simplify right side
    208,028.60x = 55,086,742,985.82
  5. Step 5: Solve for x
    x = 55,086,742,985.82/208,028.60
  6. Step 6: Final answer
    x = 264,803.70

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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.