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Finding the Fourth Proportional to 356,068.98, 534,102.03 and 145,706.82

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Solution

The fourth proportional to 356,068.98, 534,102.03 and 145,706.82 is: 218,559.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,068.98 : 534,102.03 = 145,706.82 : x
  2. Step 2: Convert to fraction form
    356,068.98/534,102.03 = 145,706.82/x
  3. Step 3: Cross multiply
    356,068.98x = 534,102.03 × 145,706.82
  4. Step 4: Simplify right side
    356,068.98x = 77,822,308,346.84
  5. Step 5: Solve for x
    x = 77,822,308,346.84/356,068.98
  6. Step 6: Final answer
    x = 218,559.64

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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.