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Finding the Fourth Proportional to 124,681.52, 187,038.84 and 45,796.88

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Solution

The fourth proportional to 124,681.52, 187,038.84 and 45,796.88 is: 68,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,681.52 : 187,038.84 = 45,796.88 : x
  2. Step 2: Convert to fraction form
    124,681.52/187,038.84 = 45,796.88/x
  3. Step 3: Cross multiply
    124,681.52x = 187,038.84 × 45,796.88
  4. Step 4: Simplify right side
    124,681.52x = 8,565,795,310.82
  5. Step 5: Solve for x
    x = 8,565,795,310.82/124,681.52
  6. Step 6: Final answer
    x = 68,701.40

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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.