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Finding the Fourth Proportional to 109,287.84, 150,813.14 and 60,888.62

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Solution

The fourth proportional to 109,287.84, 150,813.14 and 60,888.62 is: 84,024.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,287.84 : 150,813.14 = 60,888.62 : x
  2. Step 2: Convert to fraction form
    109,287.84/150,813.14 = 60,888.62/x
  3. Step 3: Cross multiply
    109,287.84x = 150,813.14 × 60,888.62
  4. Step 4: Simplify right side
    109,287.84x = 9,182,803,972.47
  5. Step 5: Solve for x
    x = 9,182,803,972.47/109,287.84
  6. Step 6: Final answer
    x = 84,024.02

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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.