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Finding the Fourth Proportional to 266,916.15, 400,484.79 and 117,079.11

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Solution

The fourth proportional to 266,916.15, 400,484.79 and 117,079.11 is: 175,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,916.15 : 400,484.79 = 117,079.11 : x
  2. Step 2: Convert to fraction form
    266,916.15/400,484.79 = 117,079.11/x
  3. Step 3: Cross multiply
    266,916.15x = 400,484.79 × 117,079.11
  4. Step 4: Simplify right side
    266,916.15x = 46,888,402,781.74
  5. Step 5: Solve for x
    x = 46,888,402,781.74/266,916.15
  6. Step 6: Final answer
    x = 175,667.16

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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.