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Finding the Fourth Proportional to 255,354.69, 383,017.64 and 113,159.01

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Solution

The fourth proportional to 255,354.69, 383,017.64 and 113,159.01 is: 169,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,354.69 : 383,017.64 = 113,159.01 : x
  2. Step 2: Convert to fraction form
    255,354.69/383,017.64 = 113,159.01/x
  3. Step 3: Cross multiply
    255,354.69x = 383,017.64 × 113,159.01
  4. Step 4: Simplify right side
    255,354.69x = 43,341,896,389.14
  5. Step 5: Solve for x
    x = 43,341,896,389.14/255,354.69
  6. Step 6: Final answer
    x = 169,732.13

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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.