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Finding the Fourth Proportional to 406,703.18, 610,051.70 and 122,392.50

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Solution

The fourth proportional to 406,703.18, 610,051.70 and 122,392.50 is: 183,587.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,703.18 : 610,051.70 = 122,392.50 : x
  2. Step 2: Convert to fraction form
    406,703.18/610,051.70 = 122,392.50/x
  3. Step 3: Cross multiply
    406,703.18x = 610,051.70 × 122,392.50
  4. Step 4: Simplify right side
    406,703.18x = 74,665,752,080.29
  5. Step 5: Solve for x
    x = 74,665,752,080.29/406,703.18
  6. Step 6: Final answer
    x = 183,587.83

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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.