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Finding the Fourth Proportional to 346,725.70, 520,088.55 and 84,069.70

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Solution

The fourth proportional to 346,725.70, 520,088.55 and 84,069.70 is: 126,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,725.70 : 520,088.55 = 84,069.70 : x
  2. Step 2: Convert to fraction form
    346,725.70/520,088.55 = 84,069.70/x
  3. Step 3: Cross multiply
    346,725.70x = 520,088.55 × 84,069.70
  4. Step 4: Simplify right side
    346,725.70x = 43,723,688,371.94
  5. Step 5: Solve for x
    x = 43,723,688,371.94/346,725.70
  6. Step 6: Final answer
    x = 126,104.55

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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.