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Finding the Fourth Proportional to 96,618.40, 144,812.40 and 40,458.40

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Solution

The fourth proportional to 96,618.40, 144,812.40 and 40,458.40 is: 60,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,618.40 : 144,812.40 = 40,458.40 : x
  2. Step 2: Convert to fraction form
    96,618.40/144,812.40 = 40,458.40/x
  3. Step 3: Cross multiply
    96,618.40x = 144,812.40 × 40,458.40
  4. Step 4: Simplify right side
    96,618.40x = 5,858,878,004.16
  5. Step 5: Solve for x
    x = 5,858,878,004.16/96,618.40
  6. Step 6: Final answer
    x = 60,639.36

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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.