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Finding the Fourth Proportional to 383,902.80, 575,681.40 and 173,432.40

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Solution

The fourth proportional to 383,902.80, 575,681.40 and 173,432.40 is: 260,070.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,902.80 : 575,681.40 = 173,432.40 : x
  2. Step 2: Convert to fraction form
    383,902.80/575,681.40 = 173,432.40/x
  3. Step 3: Cross multiply
    383,902.80x = 575,681.40 × 173,432.40
  4. Step 4: Simplify right side
    383,902.80x = 99,841,806,837.36
  5. Step 5: Solve for x
    x = 99,841,806,837.36/383,902.80
  6. Step 6: Final answer
    x = 260,070.54

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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.