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Finding the Fourth Proportional to 64,411.48, 88,836.54 and 53,214.04

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Solution

The fourth proportional to 64,411.48, 88,836.54 and 53,214.04 is: 73,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,411.48 : 88,836.54 = 53,214.04 : x
  2. Step 2: Convert to fraction form
    64,411.48/88,836.54 = 53,214.04/x
  3. Step 3: Cross multiply
    64,411.48x = 88,836.54 × 53,214.04
  4. Step 4: Simplify right side
    64,411.48x = 4,727,351,193.02
  5. Step 5: Solve for x
    x = 4,727,351,193.02/64,411.48
  6. Step 6: Final answer
    x = 73,392.99

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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.