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Finding the Fourth Proportional to 312,011.87, 468,088.27 and 98,792.73

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Solution

The fourth proportional to 312,011.87, 468,088.27 and 98,792.73 is: 148,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,011.87 : 468,088.27 = 98,792.73 : x
  2. Step 2: Convert to fraction form
    312,011.87/468,088.27 = 98,792.73/x
  3. Step 3: Cross multiply
    312,011.87x = 468,088.27 × 98,792.73
  4. Step 4: Simplify right side
    312,011.87x = 46,243,717,827.30
  5. Step 5: Solve for x
    x = 46,243,717,827.30/312,011.87
  6. Step 6: Final answer
    x = 148,211.41

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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.