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Finding the Fourth Proportional to 148,032.60, 207,712.20 and 148,032.60

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Solution

The fourth proportional to 148,032.60, 207,712.20 and 148,032.60 is: 207,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,032.60 : 207,712.20 = 148,032.60 : x
  2. Step 2: Convert to fraction form
    148,032.60/207,712.20 = 148,032.60/x
  3. Step 3: Cross multiply
    148,032.60x = 207,712.20 × 148,032.60
  4. Step 4: Simplify right side
    148,032.60x = 30,748,177,017.72
  5. Step 5: Solve for x
    x = 30,748,177,017.72/148,032.60
  6. Step 6: Final answer
    x = 207,712.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.