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Finding the Fourth Proportional to 117,835,613.10, 162,618,191.20 and 65,624,648.59

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Solution

The fourth proportional to 117,835,613.10, 162,618,191.20 and 65,624,648.59 is: 90,564,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,835,613.10 : 162,618,191.20 = 65,624,648.59 : x
  2. Step 2: Convert to fraction form
    117,835,613.10/162,618,191.20 = 65,624,648.59/x
  3. Step 3: Cross multiply
    117,835,613.10x = 162,618,191.20 × 65,624,648.59
  4. Step 4: Simplify right side
    117,835,613.10x = 10,671,761,652,126,734
  5. Step 5: Solve for x
    x = 10,671,761,652,126,734/117,835,613.10
  6. Step 6: Final answer
    x = 90,564,824.77

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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.