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Finding the Fourth Proportional to 313,776.55, 470,570.51 and 89,155.25

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Solution

The fourth proportional to 313,776.55, 470,570.51 and 89,155.25 is: 133,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,776.55 : 470,570.51 = 89,155.25 : x
  2. Step 2: Convert to fraction form
    313,776.55/470,570.51 = 89,155.25/x
  3. Step 3: Cross multiply
    313,776.55x = 470,570.51 × 89,155.25
  4. Step 4: Simplify right side
    313,776.55x = 41,953,831,096.35
  5. Step 5: Solve for x
    x = 41,953,831,096.35/313,776.55
  6. Step 6: Final answer
    x = 133,706.08

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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.