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Finding the Fourth Proportional to 207,362.40, 286,159.80 and 116,719.02

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Solution

The fourth proportional to 207,362.40, 286,159.80 and 116,719.02 is: 161,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,362.40 : 286,159.80 = 116,719.02 : x
  2. Step 2: Convert to fraction form
    207,362.40/286,159.80 = 116,719.02/x
  3. Step 3: Cross multiply
    207,362.40x = 286,159.80 × 116,719.02
  4. Step 4: Simplify right side
    207,362.40x = 33,400,291,419.40
  5. Step 5: Solve for x
    x = 33,400,291,419.40/207,362.40
  6. Step 6: Final answer
    x = 161,072.07

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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.