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Finding the Fourth Proportional to 64,204.65, 88,420.01 and 62,830.89

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Solution

The fourth proportional to 64,204.65, 88,420.01 and 62,830.89 is: 86,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,204.65 : 88,420.01 = 62,830.89 : x
  2. Step 2: Convert to fraction form
    64,204.65/88,420.01 = 62,830.89/x
  3. Step 3: Cross multiply
    64,204.65x = 88,420.01 × 62,830.89
  4. Step 4: Simplify right side
    64,204.65x = 5,555,507,607.95
  5. Step 5: Solve for x
    x = 5,555,507,607.95/64,204.65
  6. Step 6: Final answer
    x = 86,528.12

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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.