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Finding the Fourth Proportional to 111,635.16, 154,055.88 and 60,647.49

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Solution

The fourth proportional to 111,635.16, 154,055.88 and 60,647.49 is: 83,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,635.16 : 154,055.88 = 60,647.49 : x
  2. Step 2: Convert to fraction form
    111,635.16/154,055.88 = 60,647.49/x
  3. Step 3: Cross multiply
    111,635.16x = 154,055.88 × 60,647.49
  4. Step 4: Simplify right side
    111,635.16x = 9,343,102,441.74
  5. Step 5: Solve for x
    x = 9,343,102,441.74/111,635.16
  6. Step 6: Final answer
    x = 83,693.19

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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.