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Finding the Fourth Proportional to 364,651.12, 546,760.72 and 124,680.16

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Solution

The fourth proportional to 364,651.12, 546,760.72 and 124,680.16 is: 186,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,651.12 : 546,760.72 = 124,680.16 : x
  2. Step 2: Convert to fraction form
    364,651.12/546,760.72 = 124,680.16/x
  3. Step 3: Cross multiply
    364,651.12x = 546,760.72 × 124,680.16
  4. Step 4: Simplify right side
    364,651.12x = 68,170,214,051.32
  5. Step 5: Solve for x
    x = 68,170,214,051.32/364,651.12
  6. Step 6: Final answer
    x = 186,946.40

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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.