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Finding the Fourth Proportional to 66,788.04, 92,089.29 and 53,316.12

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Solution

The fourth proportional to 66,788.04, 92,089.29 and 53,316.12 is: 73,513.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,788.04 : 92,089.29 = 53,316.12 : x
  2. Step 2: Convert to fraction form
    66,788.04/92,089.29 = 53,316.12/x
  3. Step 3: Cross multiply
    66,788.04x = 92,089.29 × 53,316.12
  4. Step 4: Simplify right side
    66,788.04x = 4,909,843,636.35
  5. Step 5: Solve for x
    x = 4,909,843,636.35/66,788.04
  6. Step 6: Final answer
    x = 73,513.82

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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.