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Finding the Fourth Proportional to 61,698.91, 92,407.93 and 48,288.28

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Solution

The fourth proportional to 61,698.91, 92,407.93 and 48,288.28 is: 72,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,698.91 : 92,407.93 = 48,288.28 : x
  2. Step 2: Convert to fraction form
    61,698.91/92,407.93 = 48,288.28/x
  3. Step 3: Cross multiply
    61,698.91x = 92,407.93 × 48,288.28
  4. Step 4: Simplify right side
    61,698.91x = 4,462,219,998.06
  5. Step 5: Solve for x
    x = 4,462,219,998.06/61,698.91
  6. Step 6: Final answer
    x = 72,322.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.