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Finding the Fourth Proportional to 581,554.80, 872,329.32 and 155,089.68

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Solution

The fourth proportional to 581,554.80, 872,329.32 and 155,089.68 is: 232,633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,554.80 : 872,329.32 = 155,089.68 : x
  2. Step 2: Convert to fraction form
    581,554.80/872,329.32 = 155,089.68/x
  3. Step 3: Cross multiply
    581,554.80x = 872,329.32 × 155,089.68
  4. Step 4: Simplify right side
    581,554.80x = 135,289,275,093.42
  5. Step 5: Solve for x
    x = 135,289,275,093.42/581,554.80
  6. Step 6: Final answer
    x = 232,633.75

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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.