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Finding the Fourth Proportional to 169,638,564.60, 254,457,846.90 and 157,167,415.80

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Solution

The fourth proportional to 169,638,564.60, 254,457,846.90 and 157,167,415.80 is: 235,751,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,638,564.60 : 254,457,846.90 = 157,167,415.80 : x
  2. Step 2: Convert to fraction form
    169,638,564.60/254,457,846.90 = 157,167,415.80/x
  3. Step 3: Cross multiply
    169,638,564.60x = 254,457,846.90 × 157,167,415.80
  4. Step 4: Simplify right side
    169,638,564.60x = 39,992,482,227,305,048
  5. Step 5: Solve for x
    x = 39,992,482,227,305,048/169,638,564.60
  6. Step 6: Final answer
    x = 235,751,123.70

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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.