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Finding the Fourth Proportional to 111,008.09, 153,188.88 and 60,707.09

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Solution

The fourth proportional to 111,008.09, 153,188.88 and 60,707.09 is: 83,774.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,008.09 : 153,188.88 = 60,707.09 : x
  2. Step 2: Convert to fraction form
    111,008.09/153,188.88 = 60,707.09/x
  3. Step 3: Cross multiply
    111,008.09x = 153,188.88 × 60,707.09
  4. Step 4: Simplify right side
    111,008.09x = 9,299,651,125.16
  5. Step 5: Solve for x
    x = 9,299,651,125.16/111,008.09
  6. Step 6: Final answer
    x = 83,774.54

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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.