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Finding the Fourth Proportional to 98,124.60, 147,142.62 and 27,987.24

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Solution

The fourth proportional to 98,124.60, 147,142.62 and 27,987.24 is: 41,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,124.60 : 147,142.62 = 27,987.24 : x
  2. Step 2: Convert to fraction form
    98,124.60/147,142.62 = 27,987.24/x
  3. Step 3: Cross multiply
    98,124.60x = 147,142.62 × 27,987.24
  4. Step 4: Simplify right side
    98,124.60x = 4,118,115,820.17
  5. Step 5: Solve for x
    x = 4,118,115,820.17/98,124.60
  6. Step 6: Final answer
    x = 41,968.23

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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.