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Finding the Fourth Proportional to 187,210.99, 281,065.61 and 98,526.78

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Solution

The fourth proportional to 187,210.99, 281,065.61 and 98,526.78 is: 147,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,210.99 : 281,065.61 = 98,526.78 : x
  2. Step 2: Convert to fraction form
    187,210.99/281,065.61 = 98,526.78/x
  3. Step 3: Cross multiply
    187,210.99x = 281,065.61 × 98,526.78
  4. Step 4: Simplify right side
    187,210.99x = 27,692,489,522.04
  5. Step 5: Solve for x
    x = 27,692,489,522.04/187,210.99
  6. Step 6: Final answer
    x = 147,921.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.