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Finding the Fourth Proportional to 434,670.98, 652,047.98 and 135,071.15

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Solution

The fourth proportional to 434,670.98, 652,047.98 and 135,071.15 is: 202,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,670.98 : 652,047.98 = 135,071.15 : x
  2. Step 2: Convert to fraction form
    434,670.98/652,047.98 = 135,071.15/x
  3. Step 3: Cross multiply
    434,670.98x = 652,047.98 × 135,071.15
  4. Step 4: Simplify right side
    434,670.98x = 88,072,866,578.18
  5. Step 5: Solve for x
    x = 88,072,866,578.18/434,670.98
  6. Step 6: Final answer
    x = 202,619.62

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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.