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Finding the Fourth Proportional to 132,957.54, 183,483.99 and 72,530.40

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Solution

The fourth proportional to 132,957.54, 183,483.99 and 72,530.40 is: 100,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,957.54 : 183,483.99 = 72,530.40 : x
  2. Step 2: Convert to fraction form
    132,957.54/183,483.99 = 72,530.40/x
  3. Step 3: Cross multiply
    132,957.54x = 183,483.99 × 72,530.40
  4. Step 4: Simplify right side
    132,957.54x = 13,308,167,188.30
  5. Step 5: Solve for x
    x = 13,308,167,188.30/132,957.54
  6. Step 6: Final answer
    x = 100,093.36

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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.