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Finding the Fourth Proportional to 88,646.40, 132,969.60 and 83,462.40

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Solution

The fourth proportional to 88,646.40, 132,969.60 and 83,462.40 is: 125,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,646.40 : 132,969.60 = 83,462.40 : x
  2. Step 2: Convert to fraction form
    88,646.40/132,969.60 = 83,462.40/x
  3. Step 3: Cross multiply
    88,646.40x = 132,969.60 × 83,462.40
  4. Step 4: Simplify right side
    88,646.40x = 11,097,961,943.04
  5. Step 5: Solve for x
    x = 11,097,961,943.04/88,646.40
  6. Step 6: Final answer
    x = 125,193.60

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1.5x scale

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.