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Finding the Fourth Proportional to 207,381.60, 310,870.17 and 112,526.01

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Solution

The fourth proportional to 207,381.60, 310,870.17 and 112,526.01 is: 168,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,381.60 : 310,870.17 = 112,526.01 : x
  2. Step 2: Convert to fraction form
    207,381.60/310,870.17 = 112,526.01/x
  3. Step 3: Cross multiply
    207,381.60x = 310,870.17 × 112,526.01
  4. Step 4: Simplify right side
    207,381.60x = 34,980,979,858.12
  5. Step 5: Solve for x
    x = 34,980,979,858.12/207,381.60
  6. Step 6: Final answer
    x = 168,679.28

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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.