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Finding the Fourth Proportional to 98,469.53, 135,888.51 and 56,028.07

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Solution

The fourth proportional to 98,469.53, 135,888.51 and 56,028.07 is: 77,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,469.53 : 135,888.51 = 56,028.07 : x
  2. Step 2: Convert to fraction form
    98,469.53/135,888.51 = 56,028.07/x
  3. Step 3: Cross multiply
    98,469.53x = 135,888.51 × 56,028.07
  4. Step 4: Simplify right side
    98,469.53x = 7,613,570,950.48
  5. Step 5: Solve for x
    x = 7,613,570,950.48/98,469.53
  6. Step 6: Final answer
    x = 77,319.05

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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.