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Finding the Fourth Proportional to 96,645.80, 144,968.70 and 61,216.40

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Solution

The fourth proportional to 96,645.80, 144,968.70 and 61,216.40 is: 91,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,645.80 : 144,968.70 = 61,216.40 : x
  2. Step 2: Convert to fraction form
    96,645.80/144,968.70 = 61,216.40/x
  3. Step 3: Cross multiply
    96,645.80x = 144,968.70 × 61,216.40
  4. Step 4: Simplify right side
    96,645.80x = 8,874,461,926.68
  5. Step 5: Solve for x
    x = 8,874,461,926.68/96,645.80
  6. Step 6: Final answer
    x = 91,824.60

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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.