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Finding the Fourth Proportional to 247,209.40, 370,814.10 and 60,220.90

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Solution

The fourth proportional to 247,209.40, 370,814.10 and 60,220.90 is: 90,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,209.40 : 370,814.10 = 60,220.90 : x
  2. Step 2: Convert to fraction form
    247,209.40/370,814.10 = 60,220.90/x
  3. Step 3: Cross multiply
    247,209.40x = 370,814.10 × 60,220.90
  4. Step 4: Simplify right side
    247,209.40x = 22,330,758,834.69
  5. Step 5: Solve for x
    x = 22,330,758,834.69/247,209.40
  6. Step 6: Final answer
    x = 90,331.35

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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.