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Finding the Fourth Proportional to 163,576.40, 245,364.60 and 137,332.40

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Solution

The fourth proportional to 163,576.40, 245,364.60 and 137,332.40 is: 205,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,576.40 : 245,364.60 = 137,332.40 : x
  2. Step 2: Convert to fraction form
    163,576.40/245,364.60 = 137,332.40/x
  3. Step 3: Cross multiply
    163,576.40x = 245,364.60 × 137,332.40
  4. Step 4: Simplify right side
    163,576.40x = 33,696,509,393.04
  5. Step 5: Solve for x
    x = 33,696,509,393.04/163,576.40
  6. Step 6: Final answer
    x = 205,998.60

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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.