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Finding the Fourth Proportional to 368,705.80, 553,059.06 and 102,466.36

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Solution

The fourth proportional to 368,705.80, 553,059.06 and 102,466.36 is: 153,699.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,705.80 : 553,059.06 = 102,466.36 : x
  2. Step 2: Convert to fraction form
    368,705.80/553,059.06 = 102,466.36/x
  3. Step 3: Cross multiply
    368,705.80x = 553,059.06 × 102,466.36
  4. Step 4: Simplify right side
    368,705.80x = 56,669,948,743.22
  5. Step 5: Solve for x
    x = 56,669,948,743.22/368,705.80
  6. Step 6: Final answer
    x = 153,699.64

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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.