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Finding the Fourth Proportional to 312,011.35, 468,087.03 and 98,792.03

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Solution

The fourth proportional to 312,011.35, 468,087.03 and 98,792.03 is: 148,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,011.35 : 468,087.03 = 98,792.03 : x
  2. Step 2: Convert to fraction form
    312,011.35/468,087.03 = 98,792.03/x
  3. Step 3: Cross multiply
    312,011.35x = 468,087.03 × 98,792.03
  4. Step 4: Simplify right side
    312,011.35x = 46,243,267,486.24
  5. Step 5: Solve for x
    x = 46,243,267,486.24/312,011.35
  6. Step 6: Final answer
    x = 148,210.21

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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.