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Finding the Fourth Proportional to 117,841.36, 162,624.50 and 64,129.84

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Solution

The fourth proportional to 117,841.36, 162,624.50 and 64,129.84 is: 88,501.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,841.36 : 162,624.50 = 64,129.84 : x
  2. Step 2: Convert to fraction form
    117,841.36/162,624.50 = 64,129.84/x
  3. Step 3: Cross multiply
    117,841.36x = 162,624.50 × 64,129.84
  4. Step 4: Simplify right side
    117,841.36x = 10,429,083,165.08
  5. Step 5: Solve for x
    x = 10,429,083,165.08/117,841.36
  6. Step 6: Final answer
    x = 88,501.04

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1.5x scale

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.