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Finding the Fourth Proportional to 152,999.20, 229,531.20 and 46,374.40

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Solution

The fourth proportional to 152,999.20, 229,531.20 and 46,374.40 is: 69,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,999.20 : 229,531.20 = 46,374.40 : x
  2. Step 2: Convert to fraction form
    152,999.20/229,531.20 = 46,374.40/x
  3. Step 3: Cross multiply
    152,999.20x = 229,531.20 × 46,374.40
  4. Step 4: Simplify right side
    152,999.20x = 10,644,371,681.28
  5. Step 5: Solve for x
    x = 10,644,371,681.28/152,999.20
  6. Step 6: Final answer
    x = 69,571.42

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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.