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Finding the Fourth Proportional to 111,064, 153,270.54 and 60,764.08

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Solution

The fourth proportional to 111,064, 153,270.54 and 60,764.08 is: 83,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,064 : 153,270.54 = 60,764.08 : x
  2. Step 2: Convert to fraction form
    111,064/153,270.54 = 60,764.08/x
  3. Step 3: Cross multiply
    111,064x = 153,270.54 × 60,764.08
  4. Step 4: Simplify right side
    111,064x = 9,313,343,354.20
  5. Step 5: Solve for x
    x = 9,313,343,354.20/111,064
  6. Step 6: Final answer
    x = 83,855.64

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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.