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Finding the Fourth Proportional to 117,953.89, 162,783.18 and 88,830.11

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Solution

The fourth proportional to 117,953.89, 162,783.18 and 88,830.11 is: 122,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,953.89 : 162,783.18 = 88,830.11 : x
  2. Step 2: Convert to fraction form
    117,953.89/162,783.18 = 88,830.11/x
  3. Step 3: Cross multiply
    117,953.89x = 162,783.18 × 88,830.11
  4. Step 4: Simplify right side
    117,953.89x = 14,460,048,192.51
  5. Step 5: Solve for x
    x = 14,460,048,192.51/117,953.89
  6. Step 6: Final answer
    x = 122,590.68

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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.