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Finding the Fourth Proportional to 148,644.71, 205,071.30 and 84,948.33

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Solution

The fourth proportional to 148,644.71, 205,071.30 and 84,948.33 is: 117,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,644.71 : 205,071.30 = 84,948.33 : x
  2. Step 2: Convert to fraction form
    148,644.71/205,071.30 = 84,948.33/x
  3. Step 3: Cross multiply
    148,644.71x = 205,071.30 × 84,948.33
  4. Step 4: Simplify right side
    148,644.71x = 17,420,464,465.93
  5. Step 5: Solve for x
    x = 17,420,464,465.93/148,644.71
  6. Step 6: Final answer
    x = 117,195.32

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1.5x scale

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.