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Finding the Fourth Proportional to 117,813.60, 162,584.40 and 64,100.16

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Solution

The fourth proportional to 117,813.60, 162,584.40 and 64,100.16 is: 88,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,813.60 : 162,584.40 = 64,100.16 : x
  2. Step 2: Convert to fraction form
    117,813.60/162,584.40 = 64,100.16/x
  3. Step 3: Cross multiply
    117,813.60x = 162,584.40 × 64,100.16
  4. Step 4: Simplify right side
    117,813.60x = 10,421,686,053.50
  5. Step 5: Solve for x
    x = 10,421,686,053.50/117,813.60
  6. Step 6: Final answer
    x = 88,459.11

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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.