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Finding the Fourth Proportional to 219,392.48, 302,762.40 and 118,790.48

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Solution

The fourth proportional to 219,392.48, 302,762.40 and 118,790.48 is: 163,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,392.48 : 302,762.40 = 118,790.48 : x
  2. Step 2: Convert to fraction form
    219,392.48/302,762.40 = 118,790.48/x
  3. Step 3: Cross multiply
    219,392.48x = 302,762.40 × 118,790.48
  4. Step 4: Simplify right side
    219,392.48x = 35,965,290,821.95
  5. Step 5: Solve for x
    x = 35,965,290,821.95/219,392.48
  6. Step 6: Final answer
    x = 163,931.28

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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.