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Finding the Fourth Proportional to 158,807.40, 238,016.70 and 69,966.60

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Solution

The fourth proportional to 158,807.40, 238,016.70 and 69,966.60 is: 104,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,807.40 : 238,016.70 = 69,966.60 : x
  2. Step 2: Convert to fraction form
    158,807.40/238,016.70 = 69,966.60/x
  3. Step 3: Cross multiply
    158,807.40x = 238,016.70 × 69,966.60
  4. Step 4: Simplify right side
    158,807.40x = 16,653,219,242.22
  5. Step 5: Solve for x
    x = 16,653,219,242.22/158,807.40
  6. Step 6: Final answer
    x = 104,864.25

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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.