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Finding the Fourth Proportional to 147,858.40, 221,816.40 and 63,618.40

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Solution

The fourth proportional to 147,858.40, 221,816.40 and 63,618.40 is: 95,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,858.40 : 221,816.40 = 63,618.40 : x
  2. Step 2: Convert to fraction form
    147,858.40/221,816.40 = 63,618.40/x
  3. Step 3: Cross multiply
    147,858.40x = 221,816.40 × 63,618.40
  4. Step 4: Simplify right side
    147,858.40x = 14,111,604,461.76
  5. Step 5: Solve for x
    x = 14,111,604,461.76/147,858.40
  6. Step 6: Final answer
    x = 95,439.99

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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.