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Finding the Fourth Proportional to 110,151.88, 152,009.59 and 65,439.88

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Solution

The fourth proportional to 110,151.88, 152,009.59 and 65,439.88 is: 90,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,151.88 : 152,009.59 = 65,439.88 : x
  2. Step 2: Convert to fraction form
    110,151.88/152,009.59 = 65,439.88/x
  3. Step 3: Cross multiply
    110,151.88x = 152,009.59 × 65,439.88
  4. Step 4: Simplify right side
    110,151.88x = 9,947,489,328.45
  5. Step 5: Solve for x
    x = 9,947,489,328.45/110,151.88
  6. Step 6: Final answer
    x = 90,307.03

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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.