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Finding the Fourth Proportional to 99,975.60, 149,888.48 and 60,523.20

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Solution

The fourth proportional to 99,975.60, 149,888.48 and 60,523.20 is: 90,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,975.60 : 149,888.48 = 60,523.20 : x
  2. Step 2: Convert to fraction form
    99,975.60/149,888.48 = 60,523.20/x
  3. Step 3: Cross multiply
    99,975.60x = 149,888.48 × 60,523.20
  4. Step 4: Simplify right side
    99,975.60x = 9,071,730,452.74
  5. Step 5: Solve for x
    x = 9,071,730,452.74/99,975.60
  6. Step 6: Final answer
    x = 90,739.44

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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.