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Finding the Fourth Proportional to 517,671.01, 776,111.23 and 162,479.53

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Solution

The fourth proportional to 517,671.01, 776,111.23 and 162,479.53 is: 243,595.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,671.01 : 776,111.23 = 162,479.53 : x
  2. Step 2: Convert to fraction form
    517,671.01/776,111.23 = 162,479.53/x
  3. Step 3: Cross multiply
    517,671.01x = 776,111.23 × 162,479.53
  4. Step 4: Simplify right side
    517,671.01x = 126,102,187,878.12
  5. Step 5: Solve for x
    x = 126,102,187,878.12/517,671.01
  6. Step 6: Final answer
    x = 243,595.23

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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.