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Finding the Fourth Proportional to 348,078.80, 521,772.60 and 160,763.60

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Solution

The fourth proportional to 348,078.80, 521,772.60 and 160,763.60 is: 240,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,078.80 : 521,772.60 = 160,763.60 : x
  2. Step 2: Convert to fraction form
    348,078.80/521,772.60 = 160,763.60/x
  3. Step 3: Cross multiply
    348,078.80x = 521,772.60 × 160,763.60
  4. Step 4: Simplify right side
    348,078.80x = 83,882,041,557.36
  5. Step 5: Solve for x
    x = 83,882,041,557.36/348,078.80
  6. Step 6: Final answer
    x = 240,985.78

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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.