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Finding the Fourth Proportional to 348,545.10, 522,817.65 and 111,911.70

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Solution

The fourth proportional to 348,545.10, 522,817.65 and 111,911.70 is: 167,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,545.10 : 522,817.65 = 111,911.70 : x
  2. Step 2: Convert to fraction form
    348,545.10/522,817.65 = 111,911.70/x
  3. Step 3: Cross multiply
    348,545.10x = 522,817.65 × 111,911.70
  4. Step 4: Simplify right side
    348,545.10x = 58,509,412,001.51
  5. Step 5: Solve for x
    x = 58,509,412,001.51/348,545.10
  6. Step 6: Final answer
    x = 167,867.55

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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.