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Finding the Fourth Proportional to 302,762.88, 417,807.36 and 168,624

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Solution

The fourth proportional to 302,762.88, 417,807.36 and 168,624 is: 232,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,762.88 : 417,807.36 = 168,624 : x
  2. Step 2: Convert to fraction form
    302,762.88/417,807.36 = 168,624/x
  3. Step 3: Cross multiply
    302,762.88x = 417,807.36 × 168,624
  4. Step 4: Simplify right side
    302,762.88x = 70,452,348,272.64
  5. Step 5: Solve for x
    x = 70,452,348,272.64/302,762.88
  6. Step 6: Final answer
    x = 232,698.10

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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.