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Finding the Fourth Proportional to 292,882.50, 439,323.75 and 71,266.50

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Solution

The fourth proportional to 292,882.50, 439,323.75 and 71,266.50 is: 106,899.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,882.50 : 439,323.75 = 71,266.50 : x
  2. Step 2: Convert to fraction form
    292,882.50/439,323.75 = 71,266.50/x
  3. Step 3: Cross multiply
    292,882.50x = 439,323.75 × 71,266.50
  4. Step 4: Simplify right side
    292,882.50x = 31,309,066,029.38
  5. Step 5: Solve for x
    x = 31,309,066,029.38/292,882.50
  6. Step 6: Final answer
    x = 106,899.75

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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.