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Finding the Fourth Proportional to 165,798.93, 228,802.82 and 90,347.43

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Solution

The fourth proportional to 165,798.93, 228,802.82 and 90,347.43 is: 124,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,798.93 : 228,802.82 = 90,347.43 : x
  2. Step 2: Convert to fraction form
    165,798.93/228,802.82 = 90,347.43/x
  3. Step 3: Cross multiply
    165,798.93x = 228,802.82 × 90,347.43
  4. Step 4: Simplify right side
    165,798.93x = 20,671,746,312.02
  5. Step 5: Solve for x
    x = 20,671,746,312.02/165,798.93
  6. Step 6: Final answer
    x = 124,679.61

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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.