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Finding the Fourth Proportional to 153,475.53, 211,793.04 and 85,492.41

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Solution

The fourth proportional to 153,475.53, 211,793.04 and 85,492.41 is: 117,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,475.53 : 211,793.04 = 85,492.41 : x
  2. Step 2: Convert to fraction form
    153,475.53/211,793.04 = 85,492.41/x
  3. Step 3: Cross multiply
    153,475.53x = 211,793.04 × 85,492.41
  4. Step 4: Simplify right side
    153,475.53x = 18,106,697,410.83
  5. Step 5: Solve for x
    x = 18,106,697,410.83/153,475.53
  6. Step 6: Final answer
    x = 117,977.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.