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Finding the Fourth Proportional to 302,616, 417,623.04 and 168,480

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Solution

The fourth proportional to 302,616, 417,623.04 and 168,480 is: 232,509.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,616 : 417,623.04 = 168,480 : x
  2. Step 2: Convert to fraction form
    302,616/417,623.04 = 168,480/x
  3. Step 3: Cross multiply
    302,616x = 417,623.04 × 168,480
  4. Step 4: Simplify right side
    302,616x = 70,361,129,779.20
  5. Step 5: Solve for x
    x = 70,361,129,779.20/302,616
  6. Step 6: Final answer
    x = 232,509.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.