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Finding the Fourth Proportional to 185,855.40, 278,564.40 and 97,063.20

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Solution

The fourth proportional to 185,855.40, 278,564.40 and 97,063.20 is: 145,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,855.40 : 278,564.40 = 97,063.20 : x
  2. Step 2: Convert to fraction form
    185,855.40/278,564.40 = 97,063.20/x
  3. Step 3: Cross multiply
    185,855.40x = 278,564.40 × 97,063.20
  4. Step 4: Simplify right side
    185,855.40x = 27,038,352,070.08
  5. Step 5: Solve for x
    x = 27,038,352,070.08/185,855.40
  6. Step 6: Final answer
    x = 145,480.58

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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.