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Finding the Fourth Proportional to 147,502.80, 221,232.24 and 72,602.64

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Solution

The fourth proportional to 147,502.80, 221,232.24 and 72,602.64 is: 108,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,502.80 : 221,232.24 = 72,602.64 : x
  2. Step 2: Convert to fraction form
    147,502.80/221,232.24 = 72,602.64/x
  3. Step 3: Cross multiply
    147,502.80x = 221,232.24 × 72,602.64
  4. Step 4: Simplify right side
    147,502.80x = 16,062,044,677.11
  5. Step 5: Solve for x
    x = 16,062,044,677.11/147,502.80
  6. Step 6: Final answer
    x = 108,893.15

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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.