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Finding the Fourth Proportional to 113,637.53, 170,505.51 and 60,985.51

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Solution

The fourth proportional to 113,637.53, 170,505.51 and 60,985.51 is: 91,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,637.53 : 170,505.51 = 60,985.51 : x
  2. Step 2: Convert to fraction form
    113,637.53/170,505.51 = 60,985.51/x
  3. Step 3: Cross multiply
    113,637.53x = 170,505.51 × 60,985.51
  4. Step 4: Simplify right side
    113,637.53x = 10,398,364,830.20
  5. Step 5: Solve for x
    x = 10,398,364,830.20/113,637.53
  6. Step 6: Final answer
    x = 91,504.67

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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.