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Finding the Fourth Proportional to 89,693.93, 134,464.51 and 39,746.80

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Solution

The fourth proportional to 89,693.93, 134,464.51 and 39,746.80 is: 59,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,693.93 : 134,464.51 = 39,746.80 : x
  2. Step 2: Convert to fraction form
    89,693.93/134,464.51 = 39,746.80/x
  3. Step 3: Cross multiply
    89,693.93x = 134,464.51 × 39,746.80
  4. Step 4: Simplify right side
    89,693.93x = 5,344,533,980.26
  5. Step 5: Solve for x
    x = 5,344,533,980.26/89,693.93
  6. Step 6: Final answer
    x = 59,586.35

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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.