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Finding the Fourth Proportional to 346,672.50, 520,008.75 and 84,016.50

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Solution

The fourth proportional to 346,672.50, 520,008.75 and 84,016.50 is: 126,024.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,672.50 : 520,008.75 = 84,016.50 : x
  2. Step 2: Convert to fraction form
    346,672.50/520,008.75 = 84,016.50/x
  3. Step 3: Cross multiply
    346,672.50x = 520,008.75 × 84,016.50
  4. Step 4: Simplify right side
    346,672.50x = 43,689,315,144.38
  5. Step 5: Solve for x
    x = 43,689,315,144.38/346,672.50
  6. Step 6: Final answer
    x = 126,024.75

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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.