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Finding the Fourth Proportional to 280,337.80, 420,573.66 and 93,350.92

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Solution

The fourth proportional to 280,337.80, 420,573.66 and 93,350.92 is: 140,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,337.80 : 420,573.66 = 93,350.92 : x
  2. Step 2: Convert to fraction form
    280,337.80/420,573.66 = 93,350.92/x
  3. Step 3: Cross multiply
    280,337.80x = 420,573.66 × 93,350.92
  4. Step 4: Simplify right side
    280,337.80x = 39,260,938,088.77
  5. Step 5: Solve for x
    x = 39,260,938,088.77/280,337.80
  6. Step 6: Final answer
    x = 140,048.68

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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.