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Finding the Fourth Proportional to 342,856.80, 514,285.20 and 93,538.80

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Solution

The fourth proportional to 342,856.80, 514,285.20 and 93,538.80 is: 140,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,856.80 : 514,285.20 = 93,538.80 : x
  2. Step 2: Convert to fraction form
    342,856.80/514,285.20 = 93,538.80/x
  3. Step 3: Cross multiply
    342,856.80x = 514,285.20 × 93,538.80
  4. Step 4: Simplify right side
    342,856.80x = 48,105,620,465.76
  5. Step 5: Solve for x
    x = 48,105,620,465.76/342,856.80
  6. Step 6: Final answer
    x = 140,308.20

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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.