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Finding the Fourth Proportional to 98,449.16, 147,673.73 and 28,328.47

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Solution

The fourth proportional to 98,449.16, 147,673.73 and 28,328.47 is: 42,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,449.16 : 147,673.73 = 28,328.47 : x
  2. Step 2: Convert to fraction form
    98,449.16/147,673.73 = 28,328.47/x
  3. Step 3: Cross multiply
    98,449.16x = 147,673.73 × 28,328.47
  4. Step 4: Simplify right side
    98,449.16x = 4,183,370,531.73
  5. Step 5: Solve for x
    x = 4,183,370,531.73/98,449.16
  6. Step 6: Final answer
    x = 42,492.70

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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.