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Finding the Fourth Proportional to 148,970.76, 205,556.54 and 88,518.92

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Solution

The fourth proportional to 148,970.76, 205,556.54 and 88,518.92 is: 122,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,970.76 : 205,556.54 = 88,518.92 : x
  2. Step 2: Convert to fraction form
    148,970.76/205,556.54 = 88,518.92/x
  3. Step 3: Cross multiply
    148,970.76x = 205,556.54 × 88,518.92
  4. Step 4: Simplify right side
    148,970.76x = 18,195,642,919.74
  5. Step 5: Solve for x
    x = 18,195,642,919.74/148,970.76
  6. Step 6: Final answer
    x = 122,142.38

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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.