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Finding the Fourth Proportional to 114,810.60, 172,215.90 and 102,563.40

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Solution

The fourth proportional to 114,810.60, 172,215.90 and 102,563.40 is: 153,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,810.60 : 172,215.90 = 102,563.40 : x
  2. Step 2: Convert to fraction form
    114,810.60/172,215.90 = 102,563.40/x
  3. Step 3: Cross multiply
    114,810.60x = 172,215.90 × 102,563.40
  4. Step 4: Simplify right side
    114,810.60x = 17,663,048,238.06
  5. Step 5: Solve for x
    x = 17,663,048,238.06/114,810.60
  6. Step 6: Final answer
    x = 153,845.10

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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.