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Finding the Fourth Proportional to 434,376.80, 651,046.80 and 181,656.80

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Solution

The fourth proportional to 434,376.80, 651,046.80 and 181,656.80 is: 272,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,376.80 : 651,046.80 = 181,656.80 : x
  2. Step 2: Convert to fraction form
    434,376.80/651,046.80 = 181,656.80/x
  3. Step 3: Cross multiply
    434,376.80x = 651,046.80 × 181,656.80
  4. Step 4: Simplify right side
    434,376.80x = 118,267,078,338.24
  5. Step 5: Solve for x
    x = 118,267,078,338.24/434,376.80
  6. Step 6: Final answer
    x = 272,268.40

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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.