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Finding the Fourth Proportional to 111,149.89, 153,386.85 and 60,848.89

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Solution

The fourth proportional to 111,149.89, 153,386.85 and 60,848.89 is: 83,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,149.89 : 153,386.85 = 60,848.89 : x
  2. Step 2: Convert to fraction form
    111,149.89/153,386.85 = 60,848.89/x
  3. Step 3: Cross multiply
    111,149.89x = 153,386.85 × 60,848.89
  4. Step 4: Simplify right side
    111,149.89x = 9,333,419,563.10
  5. Step 5: Solve for x
    x = 9,333,419,563.10/111,149.89
  6. Step 6: Final answer
    x = 83,971.47

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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.