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Finding the Fourth Proportional to 110,117.68, 151,962.78 and 64,797.40

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Solution

The fourth proportional to 110,117.68, 151,962.78 and 64,797.40 is: 89,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,117.68 : 151,962.78 = 64,797.40 : x
  2. Step 2: Convert to fraction form
    110,117.68/151,962.78 = 64,797.40/x
  3. Step 3: Cross multiply
    110,117.68x = 151,962.78 × 64,797.40
  4. Step 4: Simplify right side
    110,117.68x = 9,846,793,040.77
  5. Step 5: Solve for x
    x = 9,846,793,040.77/110,117.68
  6. Step 6: Final answer
    x = 89,420.64

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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.