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Finding the Fourth Proportional to 88,935.76, 122,710.71 and 53,118.64

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Solution

The fourth proportional to 88,935.76, 122,710.71 and 53,118.64 is: 73,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,935.76 : 122,710.71 = 53,118.64 : x
  2. Step 2: Convert to fraction form
    88,935.76/122,710.71 = 53,118.64/x
  3. Step 3: Cross multiply
    88,935.76x = 122,710.71 × 53,118.64
  4. Step 4: Simplify right side
    88,935.76x = 6,518,226,028.63
  5. Step 5: Solve for x
    x = 6,518,226,028.63/88,935.76
  6. Step 6: Final answer
    x = 73,291.40

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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.