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Finding the Fourth Proportional to 61,730.36, 92,053.45 and 61,169

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Solution

The fourth proportional to 61,730.36, 92,053.45 and 61,169 is: 91,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,730.36 : 92,053.45 = 61,169 : x
  2. Step 2: Convert to fraction form
    61,730.36/92,053.45 = 61,169/x
  3. Step 3: Cross multiply
    61,730.36x = 92,053.45 × 61,169
  4. Step 4: Simplify right side
    61,730.36x = 5,630,817,483.05
  5. Step 5: Solve for x
    x = 5,630,817,483.05/61,730.36
  6. Step 6: Final answer
    x = 91,216.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.