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Finding the Fourth Proportional to 455,688.43, 683,629.47 and 156,088.57

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Solution

The fourth proportional to 455,688.43, 683,629.47 and 156,088.57 is: 234,166.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,688.43 : 683,629.47 = 156,088.57 : x
  2. Step 2: Convert to fraction form
    455,688.43/683,629.47 = 156,088.57/x
  3. Step 3: Cross multiply
    455,688.43x = 683,629.47 × 156,088.57
  4. Step 4: Simplify right side
    455,688.43x = 106,706,745,954.89
  5. Step 5: Solve for x
    x = 106,706,745,954.89/455,688.43
  6. Step 6: Final answer
    x = 234,166.02

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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.