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Finding the Fourth Proportional to 156,045.40, 234,068.10 and 124,941.40

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Solution

The fourth proportional to 156,045.40, 234,068.10 and 124,941.40 is: 187,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,045.40 : 234,068.10 = 124,941.40 : x
  2. Step 2: Convert to fraction form
    156,045.40/234,068.10 = 124,941.40/x
  3. Step 3: Cross multiply
    156,045.40x = 234,068.10 × 124,941.40
  4. Step 4: Simplify right side
    156,045.40x = 29,244,796,109.34
  5. Step 5: Solve for x
    x = 29,244,796,109.34/156,045.40
  6. Step 6: Final answer
    x = 187,412.10

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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.