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Finding the Fourth Proportional to 98,799.36, 148,164.48 and 61,624.32

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Solution

The fourth proportional to 98,799.36, 148,164.48 and 61,624.32 is: 92,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,799.36 : 148,164.48 = 61,624.32 : x
  2. Step 2: Convert to fraction form
    98,799.36/148,164.48 = 61,624.32/x
  3. Step 3: Cross multiply
    98,799.36x = 148,164.48 × 61,624.32
  4. Step 4: Simplify right side
    98,799.36x = 9,130,535,328.15
  5. Step 5: Solve for x
    x = 9,130,535,328.15/98,799.36
  6. Step 6: Final answer
    x = 92,414.92

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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.