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Finding the Fourth Proportional to 117,841.60, 162,624.80 and 64,130.02

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Solution

The fourth proportional to 117,841.60, 162,624.80 and 64,130.02 is: 88,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,841.60 : 162,624.80 = 64,130.02 : x
  2. Step 2: Convert to fraction form
    117,841.60/162,624.80 = 64,130.02/x
  3. Step 3: Cross multiply
    117,841.60x = 162,624.80 × 64,130.02
  4. Step 4: Simplify right side
    117,841.60x = 10,429,131,676.50
  5. Step 5: Solve for x
    x = 10,429,131,676.50/117,841.60
  6. Step 6: Final answer
    x = 88,501.27

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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.