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Finding the Fourth Proportional to 581,594.96, 872,433.92 and 155,128.38

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Solution

The fourth proportional to 581,594.96, 872,433.92 and 155,128.38 is: 232,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,594.96 : 872,433.92 = 155,128.38 : x
  2. Step 2: Convert to fraction form
    581,594.96/872,433.92 = 155,128.38/x
  3. Step 3: Cross multiply
    581,594.96x = 872,433.92 × 155,128.38
  4. Step 4: Simplify right side
    581,594.96x = 135,339,260,666.65
  5. Step 5: Solve for x
    x = 135,339,260,666.65/581,594.96
  6. Step 6: Final answer
    x = 232,703.63

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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.