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Finding the Fourth Proportional to 110,971, 153,140.52 and 60,670

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Solution

The fourth proportional to 110,971, 153,140.52 and 60,670 is: 83,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,971 : 153,140.52 = 60,670 : x
  2. Step 2: Convert to fraction form
    110,971/153,140.52 = 60,670/x
  3. Step 3: Cross multiply
    110,971x = 153,140.52 × 60,670
  4. Step 4: Simplify right side
    110,971x = 9,291,035,348.40
  5. Step 5: Solve for x
    x = 9,291,035,348.40/110,971
  6. Step 6: Final answer
    x = 83,724.90

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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.