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Finding the Fourth Proportional to 163,803.61, 245,706.80 and 45,484.18

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Solution

The fourth proportional to 163,803.61, 245,706.80 and 45,484.18 is: 68,226.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,803.61 : 245,706.80 = 45,484.18 : x
  2. Step 2: Convert to fraction form
    163,803.61/245,706.80 = 45,484.18/x
  3. Step 3: Cross multiply
    163,803.61x = 245,706.80 × 45,484.18
  4. Step 4: Simplify right side
    163,803.61x = 11,175,772,318.42
  5. Step 5: Solve for x
    x = 11,175,772,318.42/163,803.61
  6. Step 6: Final answer
    x = 68,226.65

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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.