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Finding the Fourth Proportional to 84,465.60, 116,561.04 and 48,655.50

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Solution

The fourth proportional to 84,465.60, 116,561.04 and 48,655.50 is: 67,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,465.60 : 116,561.04 = 48,655.50 : x
  2. Step 2: Convert to fraction form
    84,465.60/116,561.04 = 48,655.50/x
  3. Step 3: Cross multiply
    84,465.60x = 116,561.04 × 48,655.50
  4. Step 4: Simplify right side
    84,465.60x = 5,671,335,681.72
  5. Step 5: Solve for x
    x = 5,671,335,681.72/84,465.60
  6. Step 6: Final answer
    x = 67,143.73

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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.