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Finding the Fourth Proportional to 62,804.59, 86,417.10 and 61,309.91

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Solution

The fourth proportional to 62,804.59, 86,417.10 and 61,309.91 is: 84,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,804.59 : 86,417.10 = 61,309.91 : x
  2. Step 2: Convert to fraction form
    62,804.59/86,417.10 = 61,309.91/x
  3. Step 3: Cross multiply
    62,804.59x = 86,417.10 × 61,309.91
  4. Step 4: Simplify right side
    62,804.59x = 5,298,225,011.94
  5. Step 5: Solve for x
    x = 5,298,225,011.94/62,804.59
  6. Step 6: Final answer
    x = 84,360.47

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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.