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Finding the Fourth Proportional to 61,854.32, 92,637.12 and 45,173

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Solution

The fourth proportional to 61,854.32, 92,637.12 and 45,173 is: 67,654.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,854.32 : 92,637.12 = 45,173 : x
  2. Step 2: Convert to fraction form
    61,854.32/92,637.12 = 45,173/x
  3. Step 3: Cross multiply
    61,854.32x = 92,637.12 × 45,173
  4. Step 4: Simplify right side
    61,854.32x = 4,184,696,621.76
  5. Step 5: Solve for x
    x = 4,184,696,621.76/61,854.32
  6. Step 6: Final answer
    x = 67,654.07

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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.