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Finding the Fourth Proportional to 98,886.90, 148,334.45 and 28,766.22

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Solution

The fourth proportional to 98,886.90, 148,334.45 and 28,766.22 is: 43,150.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,886.90 : 148,334.45 = 28,766.22 : x
  2. Step 2: Convert to fraction form
    98,886.90/148,334.45 = 28,766.22/x
  3. Step 3: Cross multiply
    98,886.90x = 148,334.45 × 28,766.22
  4. Step 4: Simplify right side
    98,886.90x = 4,267,020,680.61
  5. Step 5: Solve for x
    x = 4,267,020,680.61/98,886.90
  6. Step 6: Final answer
    x = 43,150.52

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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.