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Finding the Fourth Proportional to 147,607.30, 221,410.95 and 118,082.80

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Solution

The fourth proportional to 147,607.30, 221,410.95 and 118,082.80 is: 177,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,607.30 : 221,410.95 = 118,082.80 : x
  2. Step 2: Convert to fraction form
    147,607.30/221,410.95 = 118,082.80/x
  3. Step 3: Cross multiply
    147,607.30x = 221,410.95 × 118,082.80
  4. Step 4: Simplify right side
    147,607.30x = 26,144,824,926.66
  5. Step 5: Solve for x
    x = 26,144,824,926.66/147,607.30
  6. Step 6: Final answer
    x = 177,124.20

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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.