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Finding the Fourth Proportional to 114,785.40, 171,692.10 and 103,024.20

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Solution

The fourth proportional to 114,785.40, 171,692.10 and 103,024.20 is: 154,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,785.40 : 171,692.10 = 103,024.20 : x
  2. Step 2: Convert to fraction form
    114,785.40/171,692.10 = 103,024.20/x
  3. Step 3: Cross multiply
    114,785.40x = 171,692.10 × 103,024.20
  4. Step 4: Simplify right side
    114,785.40x = 17,688,441,248.82
  5. Step 5: Solve for x
    x = 17,688,441,248.82/114,785.40
  6. Step 6: Final answer
    x = 154,100.10

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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.