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Finding the Fourth Proportional to 158,431.60, 237,258.60 and 105,554.80

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Solution

The fourth proportional to 158,431.60, 237,258.60 and 105,554.80 is: 158,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,431.60 : 237,258.60 = 105,554.80 : x
  2. Step 2: Convert to fraction form
    158,431.60/237,258.60 = 105,554.80/x
  3. Step 3: Cross multiply
    158,431.60x = 237,258.60 × 105,554.80
  4. Step 4: Simplify right side
    158,431.60x = 25,043,784,071.28
  5. Step 5: Solve for x
    x = 25,043,784,071.28/158,431.60
  6. Step 6: Final answer
    x = 158,073.16

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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.