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Finding the Fourth Proportional to 117,498.88, 162,148.66 and 63,783.93

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Solution

The fourth proportional to 117,498.88, 162,148.66 and 63,783.93 is: 88,021.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,498.88 : 162,148.66 = 63,783.93 : x
  2. Step 2: Convert to fraction form
    117,498.88/162,148.66 = 63,783.93/x
  3. Step 3: Cross multiply
    117,498.88x = 162,148.66 × 63,783.93
  4. Step 4: Simplify right side
    117,498.88x = 10,342,478,779.03
  5. Step 5: Solve for x
    x = 10,342,478,779.03/117,498.88
  6. Step 6: Final answer
    x = 88,021.94

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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.