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Finding the Fourth Proportional to 316,409.69, 474,653.72 and 116,731.13

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Solution

The fourth proportional to 316,409.69, 474,653.72 and 116,731.13 is: 175,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,409.69 : 474,653.72 = 116,731.13 : x
  2. Step 2: Convert to fraction form
    316,409.69/474,653.72 = 116,731.13/x
  3. Step 3: Cross multiply
    316,409.69x = 474,653.72 × 116,731.13
  4. Step 4: Simplify right side
    316,409.69x = 55,406,863,012.86
  5. Step 5: Solve for x
    x = 55,406,863,012.86/316,409.69
  6. Step 6: Final answer
    x = 175,111.14

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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.