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Finding the Fourth Proportional to 109,987.84, 151,783.14 and 62,240.32

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Solution

The fourth proportional to 109,987.84, 151,783.14 and 62,240.32 is: 85,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,987.84 : 151,783.14 = 62,240.32 : x
  2. Step 2: Convert to fraction form
    109,987.84/151,783.14 = 62,240.32/x
  3. Step 3: Cross multiply
    109,987.84x = 151,783.14 × 62,240.32
  4. Step 4: Simplify right side
    109,987.84x = 9,447,031,204.20
  5. Step 5: Solve for x
    x = 9,447,031,204.20/109,987.84
  6. Step 6: Final answer
    x = 85,891.60

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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.