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Finding the Fourth Proportional to 292,043.70, 438,065.55 and 181,451.70

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Solution

The fourth proportional to 292,043.70, 438,065.55 and 181,451.70 is: 272,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,043.70 : 438,065.55 = 181,451.70 : x
  2. Step 2: Convert to fraction form
    292,043.70/438,065.55 = 181,451.70/x
  3. Step 3: Cross multiply
    292,043.70x = 438,065.55 × 181,451.70
  4. Step 4: Simplify right side
    292,043.70x = 79,487,738,758.94
  5. Step 5: Solve for x
    x = 79,487,738,758.94/292,043.70
  6. Step 6: Final answer
    x = 272,177.55

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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.